{"id":77016,"date":"2026-02-23T20:42:42","date_gmt":"2026-02-23T12:42:42","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/77016.html"},"modified":"2026-02-23T20:42:42","modified_gmt":"2026-02-23T12:42:42","slug":"%e3%80%90egui%e3%80%91color32-%e4%bd%bf%e7%94%a8%e6%89%8b%e5%86%8c","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/77016.html","title":{"rendered":"\u3010egui\u3011Color32 \u4f7f\u7528\u624b\u518c"},"content":{"rendered":"

Color32 \u4f7f\u7528\u624b\u518c（\u4fee\u8ba2\u7248）<\/h2>\n

\u4e00\u3001\u7b80\u4ecb<\/h3>\n

Color32 \u662f egui\/ecolor \u4e2d\u6700\u5e38\u7528\u7684\u989c\u8272\u7c7b\u578b，\u91c7\u752832\u4f4d\u5b58\u50a8\u7684\u9884\u4e58Alpha sRGBA\u683c\u5f0f\u3002\u5b83\u662f\u9762\u5411\u663e\u793a\u8bbe\u5907\u7684\u989c\u8272\u683c\u5f0f，\u6240\u6709\u64cd\u4f5c\u90fd\u5728\u4f3d\u9a6c\u7a7a\u95f4\u8fdb\u884c\u2014\u2014\u8fd9\u610f\u5473\u7740\u5b83\u7684\u6570\u503c\u53d8\u5316\u4e0e\u4eba\u773c\u611f\u77e5\u4e00\u81f4，\u540c\u65f6\u5b8c\u7f8e\u5339\u914d\u663e\u793a\u5668\u7684\u7269\u7406\u7279\u6027\u3002<\/p>\n

\u4ec0\u4e48\u662f\u4f3d\u9a6c\u7a7a\u95f4？<\/h4>\n

\/\/ \u4f3d\u9a6c\u7a7a\u95f4\u662f\u8fde\u63a5\u7269\u7406\u4e16\u754c\u548c\u4eba\u773c\u611f\u77e5\u7684\u6865\u6881<\/span>
\n\u7269\u7406\u5149\u5f3a(<\/span>\u7ebf\u6027)<\/span> \u2190(<\/span>\u03b3\u22482.2<\/span>)<\/span>\u2192 \u4f3d\u9a6c\u503c(<\/span>\u5b58\u50a8)<\/span> \u2190(<\/span>\u03b3\u22480.45<\/span>)<\/span>\u2192 \u4eba\u773c\u611f\u77e5<\/p>\n

\/\/ \u7b80\u5355\u7406\u89e3：<\/span>
\n\/\/ – \u5728\u4f3d\u9a6c\u7a7a\u95f4，\u6570\u503c\u589e\u52a0\u4e00\u500d，\u4eba\u773c\u611f\u89c9\u4eae\u5ea6\u589e\u52a0\u4e00\u500d<\/span>
\n\/\/ – \u5728\u7269\u7406\u4e16\u754c，\u8fd9\u5bf9\u5e94\u7740\u7ea64.6\u500d\u7684\u5149\u5f3a\u53d8\u5316<\/span>
\n\/\/ – \u8fd9\u79cd\u8bbe\u8ba1\u8ba9\u5b58\u50a8\u503c\u65e2\u7b26\u5408\u76f4\u89c9，\u53c8\u5339\u914d\u663e\u793a\u5668\u786c\u4ef6<\/span><\/p>\n

\n

\u4e8c\u3001\u5feb\u901f\u5f00\u59cb<\/h3>\n

2.1 \u521b\u5efa\u989c\u8272<\/h4>\n

use<\/span> ecolor::<\/span><\/span>Color32<\/span>;<\/span><\/p>\n

\/\/ \u4f7f\u7528\u9884\u5b9a\u4e49\u5e38\u91cf<\/span>
\nlet<\/span> red =<\/span> Color32<\/span>::<\/span>RED<\/span>;<\/span>
\nlet<\/span> transparent =<\/span> Color32<\/span>::<\/span>TRANSPARENT<\/span>;<\/span>
\nlet<\/span> black =<\/span> Color32<\/span>::<\/span>BLACK<\/span>;<\/span>
\nlet<\/span> white =<\/span> Color32<\/span>::<\/span>WHITE<\/span>;<\/span><\/p>\n

\/\/ \u4eceRGB\u521b\u5efa（\u4e0d\u900f\u660e）<\/span>
\nlet<\/span> custom =<\/span> Color32<\/span>::<\/span>from_rgb<\/span>(<\/span>180<\/span>,<\/span> 200<\/span>,<\/span> 220<\/span>)<\/span>;<\/span><\/p>\n

\/\/ \u4ece\u7070\u5ea6\u521b\u5efa<\/span>
\nlet<\/span> gray =<\/span> Color32<\/span>::<\/span>from_gray<\/span>(<\/span>128<\/span>)<\/span>;<\/span> \/\/ \u89c6\u89c9\u4e0a50%\u7684\u7070<\/span><\/p>\n

\/\/ \u4ece\u5e26\u900f\u660e\u5ea6\u7684RGBA\u521b\u5efa（\u63a8\u8350\u65b9\u5f0f）<\/span>
\nlet<\/span> semi_red =<\/span> Color32<\/span>::<\/span>from_rgba_unmultiplied<\/span>(<\/span>255<\/span>,<\/span> 0<\/span>,<\/span> 0<\/span>,<\/span> 128<\/span>)<\/span>;<\/span><\/p>\n

2.2 \u5e38\u7528\u9884\u5b9a\u4e49\u989c\u8272<\/h4>\n\n\u989c\u8272\u5e38\u91cfRGB\u503c<\/tr>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\u900f\u660e<\/td>\nTRANSPARENT<\/td>\n(0,0,0,0)<\/td>\n<\/tr>\n
\u9ed1<\/td>\nBLACK<\/td>\n(0,0,0)<\/td>\n<\/tr>\n
\u6df1\u7070<\/td>\nDARK_GRAY<\/td>\n(96,96,96)<\/td>\n<\/tr>\n
\u7070<\/td>\nGRAY<\/td>\n(160,160,160)<\/td>\n<\/tr>\n
\u6d45\u7070<\/td>\nLIGHT_GRAY<\/td>\n(220,220,220)<\/td>\n<\/tr>\n
\u767d<\/td>\nWHITE<\/td>\n(255,255,255)<\/td>\n<\/tr>\n
\u7ea2<\/td>\nRED<\/td>\n(255,0,0)<\/td>\n<\/tr>\n
\u7eff<\/td>\nGREEN<\/td>\n(0,255,0)<\/td>\n<\/tr>\n
\u84dd<\/td>\nBLUE<\/td>\n(0,0,255)<\/td>\n<\/tr>\n
\u9ec4<\/td>\nYELLOW<\/td>\n(255,255,0)<\/td>\n<\/tr>\n
\u9752<\/td>\nCYAN<\/td>\n(0,255,255)<\/td>\n<\/tr>\n
\u7d2b<\/td>\nMAGENTA<\/td>\n(255,0,255)<\/td>\n<\/tr>\n
\u6a59<\/td>\nORANGE<\/td>\n(255,165,0)<\/td>\n<\/tr>\n
\u68d5<\/td>\nBROWN<\/td>\n(165,42,42)<\/td>\n<\/tr>\n
\u7d2b\u7f57\u5170<\/td>\nPURPLE<\/td>\n(128,0,128)<\/td>\n<\/tr>\n
\u91d1<\/td>\nGOLD<\/td>\n(255,215,0)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
\n

\u4e09\u3001\u6838\u5fc3\u6982\u5ff5\u7406\u89e3<\/h3>\n

3.1 \u9884\u4e58Alpha (Premultiplied Alpha)<\/h4>\n

Color32\u5185\u90e8\u4f7f\u7528\u9884\u4e58Alpha\u683c\u5f0f，\u5373RGB\u503c\u5df2\u7ecf\u4e58\u4ee5\u4e86Alpha\u901a\u9053：<\/p>\n

\/\/ \u666e\u901aRGBA（\u975e\u9884\u4e58）：(r, g, b, a)<\/span>
\n\/\/ \u9884\u4e58RGBA：(r*a\/255, g*a\/255, b*a\/255, a)<\/span><\/p>\n

\/\/ \u793a\u4f8b：50%\u900f\u660e\u7684\u7ea2\u8272<\/span>
\nlet<\/span> normal =<\/span> (<\/span>255<\/span>,<\/span> 0<\/span>,<\/span> 0<\/span>,<\/span> 128<\/span>)<\/span>;<\/span> \/\/ \u666e\u901aRGBA<\/span>
\nlet<\/span> premultiplied =<\/span> (<\/span>128<\/span>,<\/span> 0<\/span>,<\/span> 0<\/span>,<\/span> 128<\/span>)<\/span>;<\/span> \/\/ \u9884\u4e58RGBA（Color32\u5185\u90e8\u683c\u5f0f）<\/span><\/p>\n

\u9884\u4e58Alpha\u7684\u4f18\u52bf：<\/p>\n

    \n
  • \u2705 \u7edf\u4e00\u5904\u7406\u666e\u901a\u989c\u8272\u548c\u52a0\u6cd5\u989c\u8272：alpha=0\u65f6\u81ea\u7136\u8868\u793a\u5149\u6e90<\/li>\n
  • \u2705 \u66f4\u9ad8\u6548\u7684\u6df7\u5408\u8ba1\u7b97：\u51cf\u5c11\u4e00\u6b21\u4e58\u6cd5<\/li>\n
  • \u2705 GPU\u7eb9\u7406\u683c\u5f0f\u7684\u6807\u51c6：\u7eb9\u7406\u8fc7\u6ee4\u76f4\u63a5\u6b63\u786e<\/li>\n<\/ul>\n

    3.2 \u4f3d\u9a6c\u7a7a\u95f4 (Gamma Space)<\/h4>\n

    Color32\u7684\u6240\u6709\u64cd\u4f5c\u90fd\u5728\u4f3d\u9a6c\u7a7a\u95f4\u8fdb\u884c，\u8fd9\u662f\u7ecf\u8fc7\u6df1\u601d\u719f\u8651\u7684\u8bbe\u8ba1：<\/p>\n

    \/\/ \u4e3a\u4ec0\u4e48\u7528\u4f3d\u9a6c\u7a7a\u95f4？<\/span>
    \n\/\/ 1. \u5bf9\u4eba\u773c：\u6570\u503c\u53d8\u5316 = \u611f\u77e5\u53d8\u5316<\/span>
    \nlet<\/span> dark =<\/span> Color32<\/span>::<\/span>from_gray<\/span>(<\/span>64<\/span>)<\/span>;<\/span> \/\/ \u89c6\u89c9\u4e0a25%\u7070<\/span>
    \nlet<\/span> mid =<\/span> Color32<\/span>::<\/span>from_gray<\/span>(<\/span>128<\/span>)<\/span>;<\/span> \/\/ \u89c6\u89c9\u4e0a50%\u7070<\/span>
    \nlet<\/span> light =<\/span> Color32<\/span>::<\/span>from_gray<\/span>(<\/span>192<\/span>)<\/span>;<\/span> \/\/ \u89c6\u89c9\u4e0a75%\u7070<\/span><\/p>\n

    \/\/ 2. \u5bf9\u663e\u793a\u5668：\u6570\u503c\u76f4\u63a5\u5bf9\u5e94\u7535\u538b<\/span>
    \n\/\/ \u663e\u793a\u5668\u4eae\u5ea6 = (\u5b58\u50a8\u503c\/255)^2.2<\/span>
    \n\/\/ \u5b58\u50a8\u503c128 \u2192 \u4eae\u5ea6 \u2248 22% (\u521a\u597d\u662f\u7269\u7406\u4e0a\u768450%？\u4e0d，\u662f\u611f\u77e5\u4e0a\u768450%)<\/span><\/p>\n

    \/\/ 3. \u5bf9\u6574\u4e2a\u7cfb\u7edf：\u5b8c\u7f8e\u95ed\u73af<\/span>
    \n\/\/ \u7269\u7406\u5149\u5f3a \u2192 \u4f3d\u9a6c\u7f16\u7801 \u2192 \u5b58\u50a8 \u2192 \u663e\u793a\u5668 \u2192 \u4eba\u773c\u611f\u77e5<\/span>
    \n\/\/ \u2191 \u2193<\/span>
    \n\/\/ \u2514\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500 \u4e92\u76f8\u8865\u507f \u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2518<\/span><\/p>\n

    3.3 \u52a0\u6cd5\u989c\u8272 (Additive Color)\u2014\u2014\u7edf\u4e00\u6846\u67b6\u4e2d\u7684\u7279\u4f8b<\/h4>\n

    \u52a0\u6cd5\u989c\u8272\u662f\u9884\u4e58Alpha\u683c\u5f0f\u7684\u81ea\u7136\u5ef6\u4f38，\u4e0d\u662f\u53e6\u7c7b，\u800c\u662f\u540c\u4e00\u6570\u5b66\u6846\u67b6\u4e0b\u7684\u4f18\u96c5\u7279\u4f8b：<\/p>\n

    \/\/ \u5728\u9884\u4e58Alpha\u7684\u7edf\u4e00\u6846\u67b6\u4e2d：<\/span>
    \n\/\/ – \u666e\u901a\u989c\u8272：alpha > 0，RGB = \u989c\u8272 \u00d7 alpha<\/span>
    \n\/\/ – \u52a0\u6cd5\u989c\u8272：alpha = 0，RGB = \u5149\u6e90\u5f3a\u5ea6<\/span><\/p>\n

    \/\/ \u521b\u5efa\u52a0\u6cd5\u989c\u8272<\/span>
    \nlet<\/span> additive_red =<\/span> Color32<\/span>::<\/span>from_rgb_additive<\/span>(<\/span>255<\/span>,<\/span> 0<\/span>,<\/span> 0<\/span>)<\/span>;<\/span>
    \n\/\/ \u5185\u90e8\u5b58\u50a8：[255, 0, 0, 0]<\/span><\/p>\n

    \/\/ \u52a0\u6cd5\u989c\u8272\u7684\u7269\u7406\u610f\u4e49：\u5149\u6e90<\/span>
    \n\/\/ – \u7ea2\u8272\u5149，\u5f3a\u5ea6255<\/span>
    \n\/\/ – \u4e0d\u906e\u6321\u80cc\u666f，\u53ea\u4f1a\u8ba9\u80cc\u666f\u53d8\u4eae<\/span><\/p>\n

    \/\/ \u68c0\u67e5\u662f\u5426\u4e3a\u52a0\u6cd5\u989c\u8272<\/span>
    \nif<\/span> color.<\/span>is_additive<\/span>(<\/span>)<\/span> {<\/span>
    \n println!<\/span>(<\/span>"\u8fd9\u662f\u5149\u6e90（alpha=0）"<\/span>)<\/span>;<\/span>
    \n}<\/span><\/p>\n

    \u52a0\u6cd5\u989c\u8272\u4e0d\u662f\u7279\u4f8b，\u800c\u662f\u7edf\u4e00\u516c\u5f0f\u7684\u81ea\u7136\u7ed3\u679c：<\/p>\n

    \/\/ \u7edf\u4e00\u7684\u6df7\u5408\u516c\u5f0f：\u7ed3\u679c = \u524d\u666f + \u80cc\u666f * (1-\u03b1_\u524d\u666f)<\/span><\/p>\n

    \/\/ \u5f53\u524d\u666f\u662f\u52a0\u6cd5\u989c\u8272(\u03b1=0)\u65f6：<\/span>
    \n\u7ed3\u679c =<\/span> \u524d\u666f +<\/span> \u80cc\u666f *<\/span> 1<\/span> =<\/span> \u524d\u666f +<\/span> \u80cc\u666f \/\/ \u76f4\u63a5\u76f8\u52a0！<\/span><\/p>\n

    \/\/ \u5f53\u80cc\u666f\u662f\u52a0\u6cd5\u989c\u8272(\u03b1_bg=0)\u65f6：<\/span>
    \n\u7ed3\u679c =<\/span> \u524d\u666f +<\/span> \u80cc\u666f_add *<\/span> (<\/span>1<\/span>–<\/span>\u03b1_\u524d\u666f)<\/span> \/\/ \u80cc\u666f\u88ab\u524d\u666f\u8870\u51cf<\/span><\/p>\n

    \/\/ \u5f53\u4e24\u8005\u90fd\u662f\u52a0\u6cd5(\u03b1=0)\u65f6：<\/span>
    \n\u7ed3\u679c =<\/span> \u524d\u666f +<\/span> \u80cc\u666f_add \/\/ \u5149\u6e90\u53e0\u52a0<\/span><\/p>\n

    \/\/ \u6240\u4ee5\u52a0\u6cd5\u989c\u8272\u5b8c\u5168\u878d\u5165\u7edf\u4e00\u516c\u5f0f，\u4e0d\u9700\u8981\u7279\u6b8a\u5904\u7406！<\/span><\/p>\n

    3.4 \u4f3d\u9a6c\u7a7a\u95f4 vs \u7ebf\u6027\u7a7a\u95f4<\/h4>\n

    \/\/ Color32（\u4f3d\u9a6c\u7a7a\u95f4）- \u7528\u4e8e\u663e\u793a\u548c\u611f\u77e5\u5747\u5300\u7684\u64cd\u4f5c<\/span>
    \nlet<\/span> darker =<\/span> color.<\/span>gamma_multiply<\/span>(<\/span>0.5<\/span>)<\/span>;<\/span> \/\/ \u611f\u77e5\u4e0a\u53d8\u6697\u4e00\u534a<\/span><\/p>\n

    \/\/ Rgba（\u7ebf\u6027\u7a7a\u95f4）- \u7528\u4e8e\u7269\u7406\u6b63\u786e\u7684\u8ba1\u7b97<\/span>
    \nlet<\/span> rgba =<\/span> Rgba<\/span>::<\/span>from<\/span>(<\/span>color)<\/span>;<\/span> \/\/ \u8f6c\u6362\u4e3a\u7ebf\u6027\u7a7a\u95f4<\/span>
    \nlet<\/span> linear_result =<\/span> rgba *<\/span> 0.5<\/span>;<\/span> \/\/ \u7269\u7406\u4e0a\u51cf\u534a\u5149\u5f3a<\/span>
    \nlet<\/span> back =<\/span> Color32<\/span>::<\/span>from<\/span>(<\/span>linear_result)<\/span>;<\/span> \/\/ \u8f6c\u56de\u4f3d\u9a6c\u7a7a\u95f4<\/span><\/p>\n

    \/\/ \u9009\u62e9\u6307\u5357：<\/span>
    \n\/\/ – \u8c03\u8272\u3001UI\u3001\u7b80\u5355\u4eae\u5ea6\u8c03\u6574 \u2192 \u7528Color32（\u4f3d\u9a6c\u7a7a\u95f4）<\/span>
    \n\/\/ – \u5149\u7167\u3001\u7269\u7406\u6a21\u62df\u3001\u7cbe\u786e\u6df7\u5408 \u2192 \u8f6cRgba（\u7ebf\u6027\u7a7a\u95f4）<\/span><\/p>\n

    \n

    \u56db\u3001\u6784\u9020\u65b9\u6cd5\u8be6\u89e3<\/h3>\n

    4.1 \u57fa\u7840\u6784\u9020\u51fd\u6570<\/h4>\n\n\u65b9\u6cd5\u63cf\u8ff0\u793a\u4f8b<\/tr>\n\n\n\n\n\n\n\n\n
    from_rgb(r, g, b)<\/td>\n\u4e0d\u900f\u660eRGB<\/td>\nColor32::from_rgb(255, 128, 0)<\/td>\n<\/tr>\n
    from_rgba_premultiplied(r, g, b, a)<\/td>\n\u9884\u4e58RGBA（\u76f4\u63a5\u5185\u90e8\u683c\u5f0f）<\/td>\nColor32::from_rgba_premultiplied(128, 0, 0, 128)<\/td>\n<\/tr>\n
    from_rgba_unmultiplied(r, g, b, a)<\/td>\n\u666e\u901aRGBA（\u63a8\u8350）<\/td>\nColor32::from_rgba_unmultiplied(255, 0, 0, 128)<\/td>\n<\/tr>\n
    from_gray(l)<\/td>\n\u7070\u5ea6\u4e0d\u900f\u660e<\/td>\nColor32::from_gray(128)<\/td>\n<\/tr>\n
    from_black_alpha(a)<\/td>\n\u9ed1\u8272\u5e26\u900f\u660e\u5ea6<\/td>\nColor32::from_black_alpha(64)<\/td>\n<\/tr>\n
    from_white_alpha(a)<\/td>\n\u767d\u8272\u5e26\u900f\u660e\u5ea6<\/td>\nColor32::from_white_alpha(64)<\/td>\n<\/tr>\n
    from_additive_luminance(l)<\/td>\n\u52a0\u6cd5\u4eae\u5ea6<\/td>\nColor32::from_additive_luminance(128)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    4.2 \u7279\u6b8a\u6784\u9020\u51fd\u6570<\/h4>\n

    \/\/ \u4eceRGB\u521b\u5efa\u52a0\u6cd5\u989c\u8272（\u5149\u6e90）<\/span>
    \nlet<\/span> additive =<\/span> Color32<\/span>::<\/span>from_rgb_additive<\/span>(<\/span>255<\/span>,<\/span> 200<\/span>,<\/span> 100<\/span>)<\/span>;<\/span><\/p>\n

    \/\/ \u4ece\u5df2\u6709\u989c\u8272\u83b7\u53d6\u52a0\u6cd5\u7248\u672c（\u8f6c\u4e3a\u5149\u6e90）<\/span>
    \nlet<\/span> original =<\/span> Color32<\/span>::<\/span>RED<\/span>;<\/span>
    \nlet<\/span> additive_version =<\/span> original.<\/span>additive<\/span>(<\/span>)<\/span>;<\/span> \/\/ alpha\u8bbe\u4e3a0，RGB\u4fdd\u6301\u4e0d\u53d8<\/span><\/p>\n

    4.3 \u6027\u80fd\u4f18\u5316\u8bf4\u660e<\/h4>\n

    from_rgba_unmultiplied \u5305\u542b\u7279\u6b8a\u4f18\u5316：<\/p>\n

    \/\/ alpha=0 \u76f4\u63a5\u8fd4\u56de\u900f\u660e<\/span>
    \n\/\/ alpha=255 \u76f4\u63a5\u8fd4\u56de\u4e0d\u900f\u660eRGB<\/span>
    \n\/\/ \u5176\u4ed6\u60c5\u51b5\u4f7f\u7528\u67e5\u627e\u8868\u52a0\u901f\u8ba1\u7b97<\/span>
    \nlet<\/span> color =<\/span> Color32<\/span>::<\/span>from_rgba_unmultiplied<\/span>(<\/span>255<\/span>,<\/span> 0<\/span>,<\/span> 0<\/span>,<\/span> 128<\/span>)<\/span>;<\/span><\/p>\n

    \n

    \u4e94\u3001\u989c\u8272\u8bbf\u95ee\u65b9\u6cd5<\/h3>\n

    5.1 \u83b7\u53d6\u901a\u9053\u503c<\/h4>\n

    let<\/span> color =<\/span> Color32<\/span>::<\/span>from_rgba_unmultiplied<\/span>(<\/span>100<\/span>,<\/span> 150<\/span>,<\/span> 200<\/span>,<\/span> 180<\/span>)<\/span>;<\/span><\/p>\n

    \/\/ \u83b7\u53d6\u9884\u4e58\u540e\u7684\u5404\u901a\u9053<\/span>
    \nlet<\/span> r =<\/span> color.<\/span>r<\/span>(<\/span>)<\/span>;<\/span> \/\/ \u9884\u4e58\u540e\u7684\u7ea2\u8272\u503c<\/span>
    \nlet<\/span> g =<\/span> color.<\/span>g<\/span>(<\/span>)<\/span>;<\/span> \/\/ \u9884\u4e58\u540e\u7684\u7eff\u8272\u503c<\/span>
    \nlet<\/span> b =<\/span> color.<\/span>b<\/span>(<\/span>)<\/span>;<\/span> \/\/ \u9884\u4e58\u540e\u7684\u84dd\u8272\u503c<\/span>
    \nlet<\/span> a =<\/span> color.<\/span>a<\/span>(<\/span>)<\/span>;<\/span> \/\/ Alpha\u503c（\u672a\u9884\u4e58）<\/span><\/p>\n

    \/\/ \u68c0\u67e5\u4e0d\u900f\u660e\u5ea6<\/span>
    \nif<\/span> color.<\/span>is_opaque<\/span>(<\/span>)<\/span> {<\/span>
    \n println!<\/span>(<\/span>"\u5b8c\u5168\u4e0d\u900f\u660e (alpha=255)"<\/span>)<\/span>;<\/span>
    \n}<\/span><\/p>\n

    \/\/ \u68c0\u67e5\u662f\u5426\u4e3a\u52a0\u6cd5\u989c\u8272（\u5149\u6e90）<\/span>
    \nif<\/span> color.<\/span>is_additive<\/span>(<\/span>)<\/span> {<\/span>
    \n println!<\/span>(<\/span>"\u8fd9\u662f\u5149\u6e90 (alpha=0)"<\/span>)<\/span>;<\/span>
    \n}<\/span><\/p>\n

    5.2 \u8f6c\u6362\u4e3a\u6570\u7ec4\/\u5143\u7ec4<\/h4>\n

    \/\/ \u8f6c\u6570\u7ec4（\u9884\u4e58\u683c\u5f0f）<\/span>
    \nlet<\/span> array =<\/span> color.<\/span>to_array<\/span>(<\/span>)<\/span>;<\/span> \/\/ [r, g, b, a]<\/span><\/p>\n

    \/\/ \u8f6c\u5143\u7ec4（\u9884\u4e58\u683c\u5f0f）<\/span>
    \nlet<\/span> tuple =<\/span> color.<\/span>to_tuple<\/span>(<\/span>)<\/span>;<\/span> \/\/ (r, g, b, a)<\/span><\/p>\n

    5.3 \u8f6c\u6362\u4e3a\u975e\u9884\u4e58RGBA<\/h4>\n

    \/\/ \u83b7\u53d6\u666e\u901aRGBA\u503c（\u7528\u4e8e\u989c\u8272\u9009\u62e9\u5668\u663e\u793a\u7b49）<\/span>
    \nlet<\/span> [<\/span>r,<\/span> g,<\/span> b,<\/span> a]<\/span> =<\/span> color.<\/span>to_srgba_unmultiplied<\/span>(<\/span>)<\/span>;<\/span>
    \n\/\/ \u6ce8\u610f：\u900f\u660e\u989c\u8272\u53ef\u80fd\u6709\u5fae\u5c0f\u8bef\u5dee（\u00b13\u4ee5\u5185）<\/span><\/p>\n

    5.4 \u8f6c\u6362\u4e3a\u6d6e\u70b9\u503c<\/h4>\n

    \/\/ \u76f4\u63a5\u8f6c\u6362\u4e3a0-1\u6d6e\u70b9（\u65e0\u4f3d\u9a6c\u8f6c\u6362，\u8c28\u614e\u4f7f\u7528！）<\/span>
    \nlet<\/span> [<\/span>r,<\/span> g,<\/span> b,<\/span> a]<\/span> =<\/span> color.<\/span>to_normalized_gamma_f32<\/span>(<\/span>)<\/span>;<\/span>
    \n\/\/ \u901a\u5e38\u5e94\u8be5\u7528 Rgba::from(color) \u4ee3\u66ff<\/span><\/p>\n

    \n

    \u516d\u3001\u989c\u8272\u8fd0\u7b97<\/h3>\n

    6.1 \u989c\u8272\u6df7\u5408\u2014\u2014\u7edf\u4e00\u7684\u516c\u5f0f<\/h4>\n

    let<\/span> background =<\/span> Color32<\/span>::<\/span>from_gray<\/span>(<\/span>200<\/span>)<\/span>;<\/span>
    \nlet<\/span> foreground =<\/span> Color32<\/span>::<\/span>from_rgba_unmultiplied<\/span>(<\/span>255<\/span>,<\/span> 0<\/span>,<\/span> 0<\/span>,<\/span> 128<\/span>)<\/span>;<\/span><\/p>\n

    \/\/ \u7edf\u4e00\u7684\u6df7\u5408\u516c\u5f0f：\u7ed3\u679c = \u524d\u666f + \u80cc\u666f * (1-\u03b1_\u524d\u666f)<\/span>
    \nlet<\/span> result =<\/span> foreground.<\/span>blend<\/span>(<\/span>background)<\/span>;<\/span><\/p>\n

    \/\/ \u8fd9\u4e2a\u516c\u5f0f\u7edf\u4e00\u5904\u7406\u6240\u6709\u60c5\u51b5：<\/span>
    \n\/\/ – \u666e\u901a\u524d\u666f + \u666e\u901a\u80cc\u666f<\/span>
    \n\/\/ – \u52a0\u6cd5\u524d\u666f (\u03b1=0) + \u666e\u901a\u80cc\u666f \u2192 \u76f4\u63a5\u76f8\u52a0<\/span>
    \n\/\/ – \u666e\u901a\u524d\u666f + \u52a0\u6cd5\u80cc\u666f \u2192 \u80cc\u666f\u88ab\u524d\u666f\u8870\u51cf<\/span>
    \n\/\/ – \u53cc\u52a0\u6cd5 \u2192 \u5149\u6e90\u53e0\u52a0<\/span><\/p>\n

    \/\/ \u7b49\u4ef7\u4e8e：<\/span>
    \nlet<\/span> result =<\/span> background.<\/span>gamma_multiply_u8<\/span>(<\/span>255<\/span> –<\/span> foreground.<\/span>a<\/span>(<\/span>)<\/span>)<\/span> +<\/span> foreground;<\/span><\/p>\n

    6.2 \u4eae\u5ea6\u8c03\u6574<\/h4>\n

    let<\/span> color =<\/span> Color32<\/span>::<\/span>RED<\/span>;<\/span><\/p>\n

    \/\/ \u4f3d\u9a6c\u7a7a\u95f4\u53d8\u6697（\u611f\u77e5\u5747\u5300，\u901f\u5ea6\u5feb）<\/span>
    \nlet<\/span> darker =<\/span> color.<\/span>gamma_multiply<\/span>(<\/span>0.5<\/span>)<\/span>;<\/span> \/\/ \u611f\u89c9\u4e0a\u6697\u4e86\u4e00\u534a<\/span>
    \nlet<\/span> darker_u8 =<\/span> color.<\/span>gamma_multiply_u8<\/span>(<\/span>127<\/span>)<\/span>;<\/span> \/\/ u8\u7248\u672c（127\u22480.5）<\/span><\/p>\n

    \/\/ \u7ebf\u6027\u7a7a\u95f4\u53d8\u6697（\u7269\u7406\u6b63\u786e，\u4f46\u901f\u5ea6\u6162）<\/span>
    \nlet<\/span> linear_darker =<\/span> color.<\/span>linear_multiply<\/span>(<\/span>0.5<\/span>)<\/span>;<\/span> \/\/ \u5149\u5f3a\u51cf\u534a<\/span><\/p>\n

    6.3 \u989c\u8272\u63d2\u503c<\/h4>\n

    let<\/span> start =<\/span> Color32<\/span>::<\/span>RED<\/span>;<\/span>
    \nlet<\/span> end =<\/span> Color32<\/span>::<\/span>BLUE<\/span>;<\/span><\/p>\n

    \/\/ \u5728\u4f3d\u9a6c\u7a7a\u95f4\u63d2\u503c（\u611f\u77e5\u5747\u5300）<\/span>
    \nlet<\/span> t =<\/span> 0.3<\/span>;<\/span> \/\/ 0.0=start, 1.0=end<\/span>
    \nlet<\/span> mid =<\/span> start.<\/span>lerp_to_gamma<\/span>(<\/span>end,<\/span> t)<\/span>;<\/span><\/p>\n

    6.4 \u83b7\u53d6\u4e0d\u900f\u660e\u7248\u672c<\/h4>\n

    let<\/span> transparent =<\/span> Color32<\/span>::<\/span>from_rgba_unmultiplied<\/span>(<\/span>100<\/span>,<\/span> 150<\/span>,<\/span> 200<\/span>,<\/span> 100<\/span>)<\/span>;<\/span>
    \nlet<\/span> opaque =<\/span> transparent.<\/span>to_opaque<\/span>(<\/span>)<\/span>;<\/span> \/\/ \u8f6c\u4e3a\u4e0d\u900f\u660e\u7248\u672c<\/span><\/p>\n

    6.5 \u4eae\u5ea6\u8ba1\u7b97<\/h4>\n

    let<\/span> color =<\/span> Color32<\/span>::<\/span>from_rgb<\/span>(<\/span>100<\/span>,<\/span> 150<\/span>,<\/span> 200<\/span>)<\/span>;<\/span>
    \nlet<\/span> intensity =<\/span> color.<\/span>intensity<\/span>(<\/span>)<\/span>;<\/span> \/\/ \u8fd4\u56de0-1\u4e4b\u95f4\u7684\u611f\u77e5\u4eae\u5ea6<\/span>
    \n\/\/ \u4f7f\u7528\u6807\u51c6\u7070\u5ea6\u516c\u5f0f：0.299R + 0.587G + 0.114B<\/span><\/p>\n

    \n

    \u4e03\u3001\u8fd0\u7b97\u7b26\u91cd\u8f7d<\/h3>\n

    7.1 \u52a0\u6cd5（\u9971\u548c\u76f8\u52a0）<\/h4>\n

    \/\/ \u901a\u9053\u503c\u9971\u548c\u76f8\u52a0（\u4e0d\u4f1a\u6ea2\u51fa）<\/span>
    \nlet<\/span> c1 =<\/span> Color32<\/span>::<\/span>from_rgb<\/span>(<\/span>200<\/span>,<\/span> 100<\/span>,<\/span> 50<\/span>)<\/span>;<\/span>
    \nlet<\/span> c2 =<\/span> Color32<\/span>::<\/span>from_rgb<\/span>(<\/span>100<\/span>,<\/span> 200<\/span>,<\/span> 220<\/span>)<\/span>;<\/span>
    \nlet<\/span> sum =<\/span> c1 +<\/span> c2;<\/span> \/\/ \u6bcf\u4e2a\u901a\u9053\u9971\u548c\u76f8\u52a0<\/span><\/p>\n

    \/\/ \u52a0\u6cd5\u5bf9\u666e\u901a\u989c\u8272\u548c\u52a0\u6cd5\u989c\u8272\u4e00\u89c6\u540c\u4ec1<\/span>
    \nlet<\/span> light =<\/span> Color32<\/span>::<\/span>from_rgb_additive<\/span>(<\/span>100<\/span>,<\/span> 50<\/span>,<\/span> 20<\/span>)<\/span>;<\/span>
    \nlet<\/span> background =<\/span> Color32<\/span>::<\/span>from_gray<\/span>(<\/span>100<\/span>)<\/span>;<\/span>
    \nlet<\/span> lit =<\/span> background +<\/span> light;<\/span> \/\/ \u5149\u6e90\u53e0\u52a0\u5230\u80cc\u666f<\/span><\/p>\n

    7.2 \u4e58\u6cd5（\u4f3d\u9a6c\u7a7a\u95f4）<\/h4>\n

    \/\/ \u4f3d\u9a6c\u7a7a\u95f4\u901a\u9053\u76f8\u4e58（\u9664\u4ee5255\u5f52\u4e00\u5316）<\/span>
    \nlet<\/span> c1 =<\/span> Color32<\/span>::<\/span>from_rgb<\/span>(<\/span>200<\/span>,<\/span> 100<\/span>,<\/span> 50<\/span>)<\/span>;<\/span>
    \nlet<\/span> c2 =<\/span> Color32<\/span>::<\/span>from_rgb<\/span>(<\/span>100<\/span>,<\/span> 200<\/span>,<\/span> 220<\/span>)<\/span>;<\/span>
    \nlet<\/span> product =<\/span> c1 *<\/span> c2;<\/span> \/\/ \u7528\u4e8e\u6ee4\u955c\u6548\u679c\u7b49<\/span><\/p>\n

    7.3 \u7d22\u5f15\u8bbf\u95ee<\/h4>\n

    let<\/span> color =<\/span> Color32<\/span>::<\/span>from_rgb<\/span>(<\/span>100<\/span>,<\/span> 150<\/span>,<\/span> 200<\/span>)<\/span>;<\/span><\/p>\n

    let<\/span> r =<\/span> color[<\/span>0<\/span>]<\/span>;<\/span> \/\/ \u7b49\u4ef7\u4e8e color.r()<\/span>
    \nlet<\/span> g =<\/span> color[<\/span>1<\/span>]<\/span>;<\/span> \/\/ \u7b49\u4ef7\u4e8e color.g()<\/span>
    \nlet<\/span> b =<\/span> color[<\/span>2<\/span>]<\/span>;<\/span> \/\/ \u7b49\u4ef7\u4e8e color.b()<\/span>
    \nlet<\/span> a =<\/span> color[<\/span>3<\/span>]<\/span>;<\/span> \/\/ \u7b49\u4ef7\u4e8e color.a()<\/span><\/p>\n

    \/\/ \u4e5f\u53ef\u4ee5\u4fee\u6539（\u9700\u8981mut）<\/span>
    \nlet<\/span> mut<\/span> color =<\/span> color;<\/span>
    \ncolor[<\/span>0<\/span>]<\/span> =<\/span> 255<\/span>;<\/span> \/\/ \u4fee\u6539\u7ea2\u8272\u901a\u9053<\/span><\/p>\n

    \n

    \u516b\u3001\u4e0eRgba\u7684\u4e92\u64cd\u4f5c<\/h3>\n

    8.1 Color32 \u2192 Rgba<\/h4>\n

    let<\/span> color32 =<\/span> Color32<\/span>::<\/span>RED<\/span>;<\/span><\/p>\n

    \/\/ \u8f6c\u6362\u4e3a\u7ebf\u6027\u7a7a\u95f4Rgba（\u81ea\u52a8\u4f3d\u9a6c\u6821\u6b63）<\/span>
    \nlet<\/span> rgba =<\/span> Rgba<\/span>::<\/span>from<\/span>(<\/span>color32)<\/span>;<\/span><\/p>\n

    \/\/ \u73b0\u5728\u53ef\u4ee5\u5728\u7ebf\u6027\u7a7a\u95f4\u8fdb\u884c\u590d\u6742\u8ba1\u7b97<\/span>
    \nlet<\/span> multiplied =<\/span> rgba *<\/span> 0.5<\/span>;<\/span>
    \nlet<\/span> blended =<\/span> rgba.<\/span>lerp<\/span>(<\/span>&<\/span>Rgba<\/span>::<\/span>WHITE<\/span>,<\/span> 0.3<\/span>)<\/span>;<\/span><\/p>\n

    8.2 Rgba \u2192 Color32<\/h4>\n

    let<\/span> rgba =<\/span> Rgba<\/span>::<\/span>from_rgb<\/span>(<\/span>0.5<\/span>,<\/span> 0.3<\/span>,<\/span> 0.8<\/span>)<\/span>;<\/span><\/p>\n

    \/\/ \u8f6c\u56de\u4f3d\u9a6c\u7a7a\u95f4Color32（\u81ea\u52a8\u4f3d\u9a6c\u6821\u6b63）<\/span>
    \nlet<\/span> color32 =<\/span> Color32<\/span>::<\/span>from<\/span>(<\/span>rgba)<\/span>;<\/span><\/p>\n

    8.3 \u4f55\u65f6\u8f6c\u6362<\/h4>\n\n\u573a\u666f\u4f7f\u7528\u683c\u5f0f\u539f\u56e0<\/tr>\n\n\n\n\n\n\n
    \u8bbe\u7f6eUI\u989c\u8272<\/td>\nColor32<\/td>\n\u76f4\u63a5\u663e\u793a，\u611f\u77e5\u5747\u5300<\/td>\n<\/tr>\n
    \u989c\u8272\u52a8\u753b<\/td>\nRgba \u2192 \u8ba1\u7b97 \u2192 Color32<\/td>\n\u7ebf\u6027\u63d2\u503c\u7269\u7406\u6b63\u786e<\/td>\n<\/tr>\n
    \u5149\u7167\u8ba1\u7b97<\/td>\nRgba<\/td>\n\u7269\u7406\u6b63\u786e\u6027\u8981\u6c42<\/td>\n<\/tr>\n
    \u590d\u6742\u989c\u8272\u6df7\u5408<\/td>\nRgba<\/td>\n\u7ebf\u6027\u7a7a\u95f4\u6df7\u5408\u6b63\u786e<\/td>\n<\/tr>\n
    \u5b58\u50a8\u7eb9\u7406<\/td>\nColor32<\/td>\n\u8282\u7701\u5185\u5b58，\u5339\u914d\u786c\u4ef6<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
    \n

    \u4e5d\u3001\u5b9e\u7528\u6280\u5de7<\/h3>\n

    9.1 \u8c03\u8bd5\u8f93\u51fa<\/h4>\n

    let<\/span> color =<\/span> Color32<\/span>::<\/span>from_rgba_unmultiplied<\/span>(<\/span>100<\/span>,<\/span> 150<\/span>,<\/span> 200<\/span>,<\/span> 128<\/span>)<\/span>;<\/span>
    \nprintln!<\/span>(<\/span>"{:?}"<\/span>,<\/span> color)<\/span>;<\/span> \/\/ \u8f93\u51fa: #64_96_C8_80<\/span>
    \n\/\/ \u683c\u5f0f：\u5341\u516d\u8fdb\u5236 RR_GG_BB_AA（\u9884\u4e58\u503c！）<\/span><\/p>\n

    9.2 \u7279\u6b8a\u989c\u8272\u6807\u8bb0<\/h4>\n

    \/\/ DEBUG_COLOR：\u7528\u4e8e\u8c03\u8bd5，\u9192\u76ee\u4f46\u4e0d\u523a\u773c<\/span>
    \nlet<\/span> debug =<\/span> Color32<\/span>::<\/span>DEBUG_COLOR<\/span>;<\/span> \/\/ (0, 200, 0, 128)<\/span><\/p>\n

    \/\/ PLACEHOLDER：\u5360\u4f4d\u7b26，\u8868\u793a"\u65e0\u989c\u8272"<\/span>
    \nlet<\/span> placeholder =<\/span> Color32<\/span>::<\/span>PLACEHOLDER<\/span>;<\/span> \/\/ (64, 254, 0, 128)<\/span><\/p>\n

    9.3 \u6027\u80fd\u6700\u4f73\u5b9e\u8df5<\/h4>\n

    \/\/ \u2705 \u597d：\u4f7f\u7528\u9884\u5b9a\u4e49\u5e38\u91cf<\/span>
    \nlet<\/span> red =<\/span> Color32<\/span>::<\/span>RED<\/span>;<\/span><\/p>\n

    \/\/ \u2705 \u597d：\u4f7f\u7528from_rgba_unmultiplied（\u6709\u4f18\u5316）<\/span>
    \nlet<\/span> semi =<\/span> Color32<\/span>::<\/span>from_rgba_unmultiplied<\/span>(<\/span>255<\/span>,<\/span> 0<\/span>,<\/span> 0<\/span>,<\/span> 128<\/span>)<\/span>;<\/span><\/p>\n

    \/\/ \u2705 \u597d：\u6279\u91cf\u64cd\u4f5c\u5728Rgba\u7a7a\u95f4\u8fdb\u884c<\/span>
    \nlet<\/span> colors:<\/span> Vec<\/span><<\/span>Color32<\/span>><\/span> =<\/span> …<\/span>;<\/span>
    \nlet<\/span> rgbs:<\/span> Vec<\/span><<\/span>Rgba<\/span>><\/span> =<\/span> colors.<\/span>iter<\/span>(<\/span>)<\/span>.<\/span>map<\/span>(<\/span>|<\/span>&<\/span>c|<\/span><\/span> Rgba<\/span>::<\/span>from<\/span>(<\/span>c)<\/span>)<\/span>.<\/span>collect<\/span>(<\/span>)<\/span>;<\/span>
    \n\/\/ … \u6279\u91cf\u8ba1\u7b97 …<\/span>
    \nlet<\/span> results:<\/span> Vec<\/span><<\/span>Color32<\/span>><\/span> =<\/span> rgbs.<\/span>into_iter<\/span>(<\/span>)<\/span>.<\/span>map<\/span>(<\/span>Color32<\/span>::<\/span>from)<\/span>.<\/span>collect<\/span>(<\/span>)<\/span>;<\/span><\/p>\n

    \/\/ \u274c \u4e0d\u597d：\u9891\u7e41\u5728Color32\u548cRgba\u95f4\u8f6c\u6362<\/span>
    \nfor<\/span> color in<\/span> colors {<\/span>
    \n let<\/span> result =<\/span> Color32<\/span>::<\/span>from<\/span>(<\/span>Rgba<\/span>::<\/span>from<\/span>(<\/span>color)<\/span> *<\/span> 0.5<\/span>)<\/span>;<\/span> \/\/ \u5faa\u73af\u5185\u8f6c\u6362<\/span>
    \n}<\/span><\/p>\n

    \n

    \u5341\u3001\u5b8c\u6574\u793a\u4f8b<\/h3>\n

    10.1 \u989c\u8272\u9009\u62e9\u5668\u503c\u5904\u7406<\/h4>\n

    use<\/span> ecolor::<\/span><\/span>{<\/span>Color32<\/span>,<\/span> Rgba<\/span>}<\/span>;<\/span><\/p>\n

    struct<\/span> ColorPicker<\/span> {<\/span>
    \n color:<\/span> Color32<\/span>,<\/span>
    \n}<\/span><\/p>\n

    impl<\/span> ColorPicker<\/span> {<\/span>
    \n fn<\/span> new<\/span>(<\/span>)<\/span> -><\/span> Self<\/span> {<\/span>
    \n Self<\/span> {<\/span>
    \n color:<\/span> Color32<\/span>::<\/span>from_rgb<\/span>(<\/span>128<\/span>,<\/span> 128<\/span>,<\/span> 255<\/span>)<\/span>,<\/span>
    \n }<\/span>
    \n }<\/span><\/p>\n

    \/\/ \u4eceUI\u63a7\u4ef6\u63a5\u6536\u975e\u9884\u4e58RGBA\u503c<\/span>
    \n fn<\/span> set_from_unmultiplied<\/span>(<\/span>&<\/span>mut<\/span> self<\/span>,<\/span> r:<\/span> u8<\/span>,<\/span> g:<\/span> u8<\/span>,<\/span> b:<\/span> u8<\/span>,<\/span> a:<\/span> u8<\/span>)<\/span> {<\/span>
    \n self<\/span>.<\/span>color =<\/span> Color32<\/span>::<\/span>from_rgba_unmultiplied<\/span>(<\/span>r,<\/span> g,<\/span> b,<\/span> a)<\/span>;<\/span>
    \n }<\/span><\/p>\n

    \/\/ \u83b7\u53d6\u7528\u4e8e\u663e\u793a\u7684\u975e\u9884\u4e58RGBA\u503c<\/span>
    \n fn<\/span> get_for_display<\/span>(<\/span>&<\/span>self<\/span>)<\/span> -><\/span> [<\/span>u8<\/span>;<\/span> 4<\/span>]<\/span> {<\/span>
    \n self<\/span>.<\/span>color.<\/span>to_srgba_unmultiplied<\/span>(<\/span>)<\/span>
    \n }<\/span><\/p>\n

    \/\/ \u8c03\u6574\u900f\u660e\u5ea6（\u611f\u77e5\u5747\u5300）<\/span>
    \n fn<\/span> set_opacity<\/span>(<\/span>&<\/span>mut<\/span> self<\/span>,<\/span> opacity:<\/span> u8<\/span>)<\/span> {<\/span>
    \n \/\/ \u4fdd\u6301\u989c\u8272\u4e0d\u53d8，\u53ea\u6539\u900f\u660e\u5ea6<\/span>
    \n let<\/span> [<\/span>r,<\/span> g,<\/span> b,<\/span> _]<\/span> =<\/span> self<\/span>.<\/span>color.<\/span>to_srgba_unmultiplied<\/span>(<\/span>)<\/span>;<\/span>
    \n self<\/span>.<\/span>color =<\/span> Color32<\/span>::<\/span>from_rgba_unmultiplied<\/span>(<\/span>r,<\/span> g,<\/span> b,<\/span> opacity)<\/span>;<\/span>
    \n }<\/span><\/p>\n

    \/\/ \u53d8\u6697（\u611f\u77e5\u5747\u5300）<\/span>
    \n fn<\/span> darken<\/span>(<\/span>&<\/span>mut<\/span> self<\/span>,<\/span> factor:<\/span> f32<\/span>)<\/span> {<\/span>
    \n self<\/span>.<\/span>color =<\/span> self<\/span>.<\/span>color.<\/span>gamma_multiply<\/span>(<\/span>factor)<\/span>;<\/span>
    \n }<\/span><\/p>\n

    \/\/ \u6df7\u5408\u4e24\u4e2a\u989c\u8272<\/span>
    \n fn<\/span> blend_with<\/span>(<\/span>&<\/span>self<\/span>,<\/span> other:<\/span> Color32<\/span>)<\/span> -><\/span> Color32<\/span> {<\/span>
    \n other.<\/span>blend<\/span>(<\/span>self<\/span>.<\/span>color)<\/span> \/\/ other\u5728\u4e0a，self\u5728\u4e0b<\/span>
    \n }<\/span>
    \n}<\/span><\/p>\n

    10.2 \u6e10\u53d8\u52a8\u753b<\/h4>\n

    use<\/span> ecolor::<\/span><\/span>{<\/span>Color32<\/span>,<\/span> Rgba<\/span>}<\/span>;<\/span><\/p>\n

    struct<\/span> GradientAnimation<\/span> {<\/span>
    \n start:<\/span> Color32<\/span>,<\/span>
    \n end:<\/span> Color32<\/span>,<\/span>
    \n progress:<\/span> f32<\/span>,<\/span> \/\/ 0.0 \u5230 1.0<\/span>
    \n}<\/span><\/p>\n

    impl<\/span> GradientAnimation<\/span> {<\/span>
    \n fn<\/span> new<\/span>(<\/span>start:<\/span> Color32<\/span>,<\/span> end:<\/span> Color32<\/span>)<\/span> -><\/span> Self<\/span> {<\/span>
    \n Self<\/span> {<\/span>
    \n start,<\/span>
    \n end,<\/span>
    \n progress:<\/span> 0.0<\/span>,<\/span>
    \n }<\/span>
    \n }<\/span><\/p>\n

    \/\/ \u83b7\u53d6\u5f53\u524d\u989c\u8272（\u5728\u4f3d\u9a6c\u7a7a\u95f4\u63d2\u503c）- \u611f\u77e5\u5747\u5300<\/span>
    \n fn<\/span> current_gamma<\/span>(<\/span>&<\/span>self<\/span>)<\/span> -><\/span> Color32<\/span> {<\/span>
    \n self<\/span>.<\/span>start.<\/span>lerp_to_gamma<\/span>(<\/span>self<\/span>.<\/span>end,<\/span> self<\/span>.<\/span>progress)<\/span>
    \n }<\/span><\/p>\n

    \/\/ \u83b7\u53d6\u5f53\u524d\u989c\u8272（\u5728\u7ebf\u6027\u7a7a\u95f4\u63d2\u503c）- \u7269\u7406\u6b63\u786e<\/span>
    \n fn<\/span> current_linear<\/span>(<\/span>&<\/span>self<\/span>)<\/span> -><\/span> Color32<\/span> {<\/span>
    \n let<\/span> start_rgba =<\/span> Rgba<\/span>::<\/span>from<\/span>(<\/span>self<\/span>.<\/span>start)<\/span>;<\/span>
    \n let<\/span> end_rgba =<\/span> Rgba<\/span>::<\/span>from<\/span>(<\/span>self<\/span>.<\/span>end)<\/span>;<\/span>
    \n let<\/span> current_rgba =<\/span> start_rgba.<\/span>lerp<\/span>(<\/span>&<\/span>end_rgba,<\/span> self<\/span>.<\/span>progress)<\/span>;<\/span>
    \n Color32<\/span>::<\/span>from<\/span>(<\/span>current_rgba)<\/span>
    \n }<\/span><\/p>\n

    \/\/ \u52a8\u753b\u66f4\u65b0<\/span>
    \n fn<\/span> update<\/span>(<\/span>&<\/span>mut<\/span> self<\/span>,<\/span> delta:<\/span> f32<\/span>)<\/span> {<\/span>
    \n self<\/span>.<\/span>progress =<\/span> (<\/span>self<\/span>.<\/span>progress +<\/span> delta)<\/span>.<\/span>clamp<\/span>(<\/span>0.0<\/span>,<\/span> 1.0<\/span>)<\/span>;<\/span>
    \n }<\/span>
    \n}<\/span><\/p>\n

    10.3 \u4e3b\u9898\u989c\u8272\u7cfb\u7edf<\/h4>\n

    use<\/span> ecolor::<\/span><\/span>Color32<\/span>;<\/span><\/p>\n

    struct<\/span> Theme<\/span> {<\/span>
    \n primary:<\/span> Color32<\/span>,<\/span>
    \n secondary:<\/span> Color32<\/span>,<\/span>
    \n background:<\/span> Color32<\/span>,<\/span>
    \n text:<\/span> Color32<\/span>,<\/span>
    \n error:<\/span> Color32<\/span>,<\/span>
    \n disabled:<\/span> Color32<\/span>,<\/span>
    \n}<\/span><\/p>\n

    impl<\/span> Theme<\/span> {<\/span>
    \n fn<\/span> light<\/span>(<\/span>)<\/span> -><\/span> Self<\/span> {<\/span>
    \n Self<\/span> {<\/span>
    \n primary:<\/span> Color32<\/span>::<\/span>from_rgb<\/span>(<\/span>0x42<\/span>,<\/span> 0xA5<\/span>,<\/span> 0xF5<\/span>)<\/span>,<\/span> \/\/ \u4eae\u84dd<\/span>
    \n secondary:<\/span> Color32<\/span>::<\/span>from_rgb<\/span>(<\/span>0x66<\/span>,<\/span> 0x66<\/span>,<\/span> 0x66<\/span>)<\/span>,<\/span> \/\/ \u4e2d\u7070<\/span>
    \n background:<\/span> Color32<\/span>::<\/span>WHITE<\/span>,<\/span>
    \n text:<\/span> Color32<\/span>::<\/span>BLACK<\/span>,<\/span>
    \n error:<\/span> Color32<\/span>::<\/span>RED<\/span>,<\/span>
    \n disabled:<\/span> Color32<\/span>::<\/span>from_rgb<\/span>(<\/span>0xCC<\/span>,<\/span> 0xCC<\/span>,<\/span> 0xCC<\/span>)<\/span>,<\/span>
    \n }<\/span>
    \n }<\/span><\/p>\n

    fn<\/span> dark<\/span>(<\/span>)<\/span> -><\/span> Self<\/span> {<\/span>
    \n Self<\/span> {<\/span>
    \n primary:<\/span> Color32<\/span>::<\/span>from_rgb<\/span>(<\/span>0x90<\/span>,<\/span> 0xCA<\/span>,<\/span> 0xF9<\/span>)<\/span>,<\/span> \/\/ \u6d45\u84dd<\/span>
    \n secondary:<\/span> Color32<\/span>::<\/span>from_rgb<\/span>(<\/span>0xB0<\/span>,<\/span> 0xB0<\/span>,<\/span> 0xB0<\/span>)<\/span>,<\/span> \/\/ \u6d45\u7070<\/span>
    \n background:<\/span> Color32<\/span>::<\/span>from_rgb<\/span>(<\/span>0x33<\/span>,<\/span> 0x33<\/span>,<\/span> 0x33<\/span>)<\/span>,<\/span>
    \n text:<\/span> Color32<\/span>::<\/span>WHITE<\/span>,<\/span>
    \n error:<\/span> Color32<\/span>::<\/span>from_rgb<\/span>(<\/span>0xFF<\/span>,<\/span> 0x6B<\/span>,<\/span> 0x6B<\/span>)<\/span>,<\/span> \/\/ \u6d45\u7ea2<\/span>
    \n disabled:<\/span> Color32<\/span>::<\/span>from_rgb<\/span>(<\/span>0x66<\/span>,<\/span> 0x66<\/span>,<\/span> 0x66<\/span>)<\/span>,<\/span>
    \n }<\/span>
    \n }<\/span><\/p>\n

    \/\/ \u521b\u5efa\u5e26\u900f\u660e\u5ea6\u7684\u7248\u672c<\/span>
    \n fn<\/span> with_opacity<\/span>(<\/span>&<\/span>self<\/span>,<\/span> color:<\/span> Color32<\/span>,<\/span> opacity:<\/span> u8<\/span>)<\/span> -><\/span> Color32<\/span> {<\/span>
    \n let<\/span> [<\/span>r,<\/span> g,<\/span> b,<\/span> _]<\/span> =<\/span> color.<\/span>to_srgba_unmultiplied<\/span>(<\/span>)<\/span>;<\/span>
    \n Color32<\/span>::<\/span>from_rgba_unmultiplied<\/span>(<\/span>r,<\/span> g,<\/span> b,<\/span> opacity)<\/span>
    \n }<\/span><\/p>\n

    \/\/ \u60ac\u505c\u6548\u679c（\u611f\u77e5\u5747\u5300\u7684\u4eae\u5316）<\/span>
    \n fn<\/span> hover<\/span>(<\/span>&<\/span>self<\/span>,<\/span> color:<\/span> Color32<\/span>)<\/span> -><\/span> Color32<\/span> {<\/span>
    \n color.<\/span>gamma_multiply<\/span>(<\/span>1.2<\/span>)<\/span> \/\/ \u611f\u89c9\u4e0a\u4eae20%<\/span>
    \n }<\/span><\/p>\n

    \/\/ \u70b9\u51fb\u6548\u679c（\u611f\u77e5\u5747\u5300\u7684\u6697\u5316）<\/span>
    \n fn<\/span> active<\/span>(<\/span>&<\/span>self<\/span>,<\/span> color:<\/span> Color32<\/span>)<\/span> -><\/span> Color32<\/span> {<\/span>
    \n color.<\/span>gamma_multiply<\/span>(<\/span>0.8<\/span>)<\/span> \/\/ \u611f\u89c9\u4e0a\u669720%<\/span>
    \n }<\/span>
    \n}<\/span><\/p>\n

    10.4 \u5149\u6e90\u7cfb\u7edf\u793a\u4f8b\u2014\u2014\u52a0\u6cd5\u989c\u8272\u7684\u5b9e\u9645\u5e94\u7528<\/h4>\n

    use<\/span> ecolor::<\/span><\/span>Color32<\/span>;<\/span><\/p>\n

    struct<\/span> LightSource<\/span> {<\/span>
    \n position:<\/span> (<\/span>f32<\/span>,<\/span> f32<\/span>)<\/span>,<\/span>
    \n color:<\/span> Color32<\/span>,<\/span> \/\/ \u52a0\u6cd5\u989c\u8272<\/span>
    \n intensity:<\/span> f32<\/span>,<\/span>
    \n}<\/span><\/p>\n

    impl<\/span> LightSource<\/span> {<\/span>
    \n fn<\/span> new<\/span>(<\/span>x:<\/span> f32<\/span>,<\/span> y:<\/span> f32<\/span>,<\/span> r:<\/span> u8<\/span>,<\/span> g:<\/span> u8<\/span>,<\/span> b:<\/span> u8<\/span>,<\/span> intensity:<\/span> f32<\/span>)<\/span> -><\/span> Self<\/span> {<\/span>
    \n Self<\/span> {<\/span>
    \n position:<\/span> (<\/span>x,<\/span> y)<\/span>,<\/span>
    \n color:<\/span> Color32<\/span>::<\/span>from_rgb_additive<\/span>(<\/span>
    \n (<\/span>r as<\/span> f32<\/span> *<\/span> intensity)<\/span> as<\/span> u8<\/span>,<\/span>
    \n (<\/span>g as<\/span> f32<\/span> *<\/span> intensity)<\/span> as<\/span> u8<\/span>,<\/span>
    \n (<\/span>b as<\/span> f32<\/span> *<\/span> intensity)<\/span> as<\/span> u8<\/span>,<\/span>
    \n )<\/span>,<\/span>
    \n intensity,<\/span>
    \n }<\/span>
    \n }<\/span><\/p>\n

    \/\/ \u5149\u7167\u8ba1\u7b97：\u5149\u6e90\u53e0\u52a0\u5230\u573a\u666f<\/span>
    \n fn<\/span> illuminate<\/span>(<\/span>&<\/span>self<\/span>,<\/span> scene_color:<\/span> Color32<\/span>,<\/span> distance:<\/span> f32<\/span>)<\/span> -><\/span> Color32<\/span> {<\/span>
    \n \/\/ \u8ddd\u79bb\u8870\u51cf<\/span>
    \n let<\/span> attenuation =<\/span> 1.0<\/span> \/<\/span> (<\/span>1.0<\/span> +<\/span> distance *<\/span> 0.1<\/span>)<\/span>;<\/span>
    \n let<\/span> attenuated =<\/span> self<\/span>.<\/span>color.<\/span>gamma_multiply<\/span>(<\/span>attenuation)<\/span>;<\/span><\/p>\n

    \/\/ \u5149\u6e90\u53e0\u52a0（\u52a0\u6cd5\u6df7\u5408）- \u7edf\u4e00\u516c\u5f0f\u7684\u81ea\u7136\u7ed3\u679c<\/span>
    \n scene_color +<\/span> attenuated
    \n }<\/span>
    \n}<\/span><\/p>\n

    \/\/ \u591a\u4e2a\u5149\u6e90\u53e0\u52a0<\/span>
    \nlet<\/span> mut<\/span> scene =<\/span> Color32<\/span>::<\/span>from_gray<\/span>(<\/span>50<\/span>)<\/span>;<\/span> \/\/ \u6df1\u7070\u8272\u80cc\u666f<\/span><\/p>\n

    let<\/span> lights =<\/span> vec!<\/span>[<\/span>
    \n LightSource<\/span>::<\/span>new<\/span>(<\/span>10.0<\/span>,<\/span> 10.0<\/span>,<\/span> 255<\/span>,<\/span> 100<\/span>,<\/span> 50<\/span>,<\/span> 1.0<\/span>)<\/span>,<\/span> \/\/ \u6696\u8272\u5149<\/span>
    \n LightSource<\/span>::<\/span>new<\/span>(<\/span>50.0<\/span>,<\/span> 30.0<\/span>,<\/span> 100<\/span>,<\/span> 200<\/span>,<\/span> 255<\/span>,<\/span> 0.8<\/span>)<\/span>,<\/span> \/\/ \u51b7\u8272\u5149<\/span>
    \n LightSource<\/span>::<\/span>new<\/span>(<\/span>80.0<\/span>,<\/span> 80.0<\/span>,<\/span> 255<\/span>,<\/span> 255<\/span>,<\/span> 100<\/span>,<\/span> 0.5<\/span>)<\/span>,<\/span> \/\/ \u6de1\u9ec4\u5149<\/span>
    \n]<\/span>;<\/span><\/p>\n

    \/\/ \u6240\u6709\u5149\u6e90\u53e0\u52a0 – \u6bcf\u4e2a\u90fd\u662f\u52a0\u6cd5\u989c\u8272，\u81ea\u7136\u5730\u76f8\u52a0<\/span>
    \nfor<\/span> light in<\/span> &<\/span>lights {<\/span>
    \n scene =<\/span> light.<\/span>illuminate<\/span>(<\/span>scene,<\/span> 20.0<\/span>)<\/span>;<\/span>
    \n}<\/span>
    \n\/\/ \u6700\u7ec8 scene \u662f\u591a\u4e2a\u5149\u6e90\u53e0\u52a0\u7684\u6548\u679c<\/span><\/p>\n

    \n

    \u5341\u4e00\u3001\u5e38\u89c1\u95ee\u9898<\/h3>\n

    Q1: \u4e3a\u4ec0\u4e48\u989c\u8272\u6df7\u5408\u7ed3\u679c\u4e0d\u7b26\u5408\u9884\u671f？<\/h4>\n

    \u53ef\u80fd\u539f\u56e0：Color32\u5728\u4f3d\u9a6c\u7a7a\u95f4\u6df7\u5408，\u8fd9\u662f\u4e3a\u4e86\u5339\u914d\u4eba\u773c\u611f\u77e5\u3002\u5982\u679c\u9700\u8981\u7269\u7406\u6b63\u786e\u7684\u6df7\u5408，\u8f6cRgba：<\/p>\n

    \/\/ \u4f3d\u9a6c\u7a7a\u95f4\u6df7\u5408（\u9ed8\u8ba4）- \u611f\u77e5\u5747\u5300<\/span>
    \nlet<\/span> gamma_blend =<\/span> fg.<\/span>blend<\/span>(<\/span>bg)<\/span>;<\/span><\/p>\n

    \/\/ \u7ebf\u6027\u7a7a\u95f4\u6df7\u5408（\u7269\u7406\u6b63\u786e）<\/span>
    \nlet<\/span> fg_rgba =<\/span> Rgba<\/span>::<\/span>from<\/span>(<\/span>fg)<\/span>;<\/span>
    \nlet<\/span> bg_rgba =<\/span> Rgba<\/span>::<\/span>from<\/span>(<\/span>bg)<\/span>;<\/span>
    \nlet<\/span> linear_blend =<\/span> Color32<\/span>::<\/span>from<\/span>(<\/span>fg_rgba *<\/span> fg_alpha +<\/span> bg_rgba *<\/span> (<\/span>1<\/span> –<\/span> fg_alpha)<\/span>)<\/span>;<\/span><\/p>\n

    Q2: \u52a0\u6cd5\u989c\u8272\u9700\u8981\u7279\u6b8a\u5904\u7406\u5417？<\/h4>\n

    \u4e0d\u9700\u8981！ \u52a0\u6cd5\u989c\u8272\u5b8c\u5168\u878d\u5165\u7edf\u4e00\u7684\u9884\u4e58\u6846\u67b6：<\/p>\n

    \/\/ \u52a0\u6cd5\u989c\u8272\u548c\u666e\u901a\u989c\u8272\u4f7f\u7528\u5b8c\u5168\u76f8\u540c\u7684API<\/span>
    \nlet<\/span> light =<\/span> Color32<\/span>::<\/span>from_rgb_additive<\/span>(<\/span>255<\/span>,<\/span> 200<\/span>,<\/span> 100<\/span>)<\/span>;<\/span>
    \nlet<\/span> normal =<\/span> Color32<\/span>::<\/span>from_rgb<\/span>(<\/span>100<\/span>,<\/span> 150<\/span>,<\/span> 200<\/span>)<\/span>;<\/span><\/p>\n

    \/\/ \u6df7\u5408\u65f6\u81ea\u52a8\u5904\u7406<\/span>
    \nlet<\/span> result =<\/span> light.<\/span>blend<\/span>(<\/span>normal)<\/span>;<\/span> \/\/ \u6839\u636ealpha\u81ea\u52a8\u9009\u62e9\u884c\u4e3a<\/span>
    \nlet<\/span> sum =<\/span> light +<\/span> normal;<\/span> \/\/ \u52a0\u6cd5\u8fd0\u7b97\u7b26\u540c\u6837\u9002\u7528<\/span><\/p>\n

    Q3: from_rgba_unmultiplied \u548c from_rgba_premultiplied \u533a\u522b？<\/h4>\n
      \n
    • from_rgba_unmultiplied：\u4f20\u5165\u666e\u901aRGBA（\u5982\u989c\u8272\u9009\u62e9\u5668\u7684\u503c），\u5185\u90e8\u81ea\u52a8\u8f6c\u6362\u4e3a\u9884\u4e58\u683c\u5f0f<\/li>\n
    • from_rgba_premultiplied：\u76f4\u63a5\u4f20\u5165\u9884\u4e58\u683c\u5f0f（\u901a\u5e38\u4e0d\u9700\u8981\u76f4\u63a5\u8c03\u7528）<\/li>\n<\/ul>\n

      Q4: \u5982\u4f55\u7cbe\u786e\u63a7\u5236\u900f\u660e\u5ea6？<\/h4>\n

      \/\/ \u521b\u5efa\u6307\u5b9a\u900f\u660e\u5ea6\u7684\u989c\u8272<\/span>
      \nlet<\/span> color =<\/span> Color32<\/span>::<\/span>from_rgba_unmultiplied<\/span>(<\/span>255<\/span>,<\/span> 0<\/span>,<\/span> 0<\/span>,<\/span> 128<\/span>)<\/span>;<\/span><\/p>\n

      \/\/ \u8c03\u6574\u5df2\u6709\u989c\u8272\u7684\u900f\u660e\u5ea6<\/span>
      \nlet<\/span> [<\/span>r,<\/span> g,<\/span> b,<\/span> _]<\/span> =<\/span> color.<\/span>to_srgba_unmultiplied<\/span>(<\/span>)<\/span>;<\/span>
      \nlet<\/span> new_opacity =<\/span> Color32<\/span>::<\/span>from_rgba_unmultiplied<\/span>(<\/span>r,<\/span> g,<\/span> b,<\/span> 64<\/span>)<\/span>;<\/span><\/p>\n

      Q5: \u4e3a\u4ec0\u4e48 to_srgba_unmultiplied \u8fd4\u56de\u7684\u503c\u6709\u5c0f\u8bef\u5dee？<\/h4>\n

      \u56e0\u4e3a\u9884\u4e58\u548c\u53cd\u9884\u4e58\u8fc7\u7a0b\u4e2d\u6709\u53d6\u6574\u8fd0\u7b97，\u900f\u660e\u989c\u8272\u7684RGB\u503c\u5728\u5f80\u8fd4\u8f6c\u6362\u65f6\u4f1a\u6709\u00b13\u4ee5\u5185\u7684\u8bef\u5dee，\u8fd9\u662f\u6b63\u5e38\u73b0\u8c61\u3002<\/p>\n

      Q6: \u4f3d\u9a6c\u7a7a\u95f4\u548c\u7ebf\u6027\u7a7a\u95f4，\u4ec0\u4e48\u65f6\u5019\u7528\u54ea\u4e2a？<\/h4>\n

      \/\/ \u7528Color32（\u4f3d\u9a6c\u7a7a\u95f4）：<\/span>
      \n\/\/ – UI\u989c\u8272\u8bbe\u7f6e<\/span>
      \n\/\/ – \u4e3b\u9898\u5b9a\u4e49<\/span>
      \n\/\/ – \u611f\u77e5\u5747\u5300\u7684\u4eae\u5ea6\u8c03\u6574<\/span>
      \n\/\/ – \u7b80\u5355\u7684\u989c\u8272\u6df7\u5408（\u5982\u6309\u94ae\u60ac\u505c\u6548\u679c）<\/span><\/p>\n

      \/\/ \u8f6cRgba（\u7ebf\u6027\u7a7a\u95f4）：<\/span>
      \n\/\/ – \u7269\u7406\u5149\u7167\u8ba1\u7b97<\/span>
      \n\/\/ – \u7cbe\u786e\u7684\u989c\u8272\u6df7\u5408<\/span>
      \n\/\/ – HDR\u989c\u8272\u5904\u7406<\/span>
      \n\/\/ – \u9700\u8981\u6570\u5b66\u6b63\u786e\u6027\u7684\u573a\u666f<\/span><\/p>\n

      \n

      \u5341\u4e8c\u3001\u6027\u80fd\u63d0\u793a<\/h3>\n
    • \u4f18\u5148\u4f7f\u7528\u9884\u5b9a\u4e49\u5e38\u91cf：Color32::RED \u6bd4 Color32::from_rgb(255,0,0) \u66f4\u5feb<\/li>\n
    • \u6279\u91cf\u64cd\u4f5c\u8f6cRgba：\u5927\u91cf\u989c\u8272\u8ba1\u7b97\u65f6，\u5148\u8f6cRgba\u6279\u91cf\u5904\u7406<\/li>\n
    • \u907f\u514d\u9891\u7e41\u8f6c\u6362：Color32 \u2194 Rgba \u8f6c\u6362\u6709\u5f00\u9500<\/li>\n
    • \u4f7f\u7528gamma_multiply_u8：u8\u7248\u672c\u6bd4f32\u7248\u672c\u66f4\u5feb<\/li>\n
    • \u5229\u7528\u67e5\u627e\u8868：from_rgba_unmultiplied \u5185\u90e8\u5df2\u4f18\u5316<\/li>\n
      \n

      \u5341\u4e09\u3001API\u901f\u67e5\u8868<\/h3>\n\n\u7c7b\u522b\u65b9\u6cd5\u63cf\u8ff0<\/tr>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
      \u6784\u9020<\/td>\nfrom_rgb<\/td>\n\u4e0d\u900f\u660eRGB<\/td>\n<\/tr>\n
      <\/td>\nfrom_rgba_unmultiplied<\/td>\n\u666e\u901aRGBA（\u63a8\u8350）<\/td>\n<\/tr>\n
      <\/td>\nfrom_rgb_additive<\/td>\n\u52a0\u6cd5\u989c\u8272（\u5149\u6e90）<\/td>\n<\/tr>\n
      <\/td>\nfrom_gray<\/td>\n\u7070\u5ea6<\/td>\n<\/tr>\n
      \u8f6c\u6362<\/td>\nto_srgba_unmultiplied<\/td>\n\u8f6c\u666e\u901aRGBA<\/td>\n<\/tr>\n
      <\/td>\nto_array\/to_tuple<\/td>\n\u8f6c\u6570\u7ec4\/\u5143\u7ec4<\/td>\n<\/tr>\n
      <\/td>\nto_opaque<\/td>\n\u8f6c\u4e0d\u900f\u660e<\/td>\n<\/tr>\n
      <\/td>\nadditive<\/td>\n\u8f6c\u52a0\u6cd5\u989c\u8272<\/td>\n<\/tr>\n
      \u67e5\u8be2<\/td>\nr\/g\/b\/a<\/td>\n\u83b7\u53d6\u901a\u9053<\/td>\n<\/tr>\n
      <\/td>\nis_opaque<\/td>\n\u662f\u5426\u4e0d\u900f\u660e<\/td>\n<\/tr>\n
      <\/td>\nis_additive<\/td>\n\u662f\u5426\u52a0\u6cd5\u989c\u8272<\/td>\n<\/tr>\n
      <\/td>\nintensity<\/td>\n\u8ba1\u7b97\u4eae\u5ea6<\/td>\n<\/tr>\n
      \u8fd0\u7b97<\/td>\nblend<\/td>\n\u989c\u8272\u6df7\u5408（\u7edf\u4e00\u516c\u5f0f）<\/td>\n<\/tr>\n
      <\/td>\ngamma_multiply<\/td>\n\u4f3d\u9a6c\u7a7a\u95f4\u4e58\u6cd5<\/td>\n<\/tr>\n
      <\/td>\nlinear_multiply<\/td>\n\u7ebf\u6027\u7a7a\u95f4\u4e58\u6cd5<\/td>\n<\/tr>\n
      <\/td>\nlerp_to_gamma<\/td>\n\u4f3d\u9a6c\u7a7a\u95f4\u63d2\u503c<\/td>\n<\/tr>\n
      \u8fd0\u7b97\u7b26<\/td>\n+<\/td>\n\u9971\u548c\u76f8\u52a0（\u7edf\u4e00\u5904\u7406）<\/td>\n<\/tr>\n
      <\/td>\n*<\/td>\n\u4f3d\u9a6c\u7a7a\u95f4\u76f8\u4e58<\/td>\n<\/tr>\n
      <\/td>\n[]<\/td>\n\u7d22\u5f15\u8bbf\u95ee<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
      \n

      \u5341\u56db\u3001\u7ed3\u8bed<\/h3>\n

      Color32 \u662fegui UI\u6846\u67b6\u7684\u6838\u5fc3\u989c\u8272\u7c7b\u578b，\u5b83\u7684\u8bbe\u8ba1\u57fa\u4e8e\u4e24\u4e2a\u6df1\u523b\u6d1e\u5bdf：<\/p>\n

    • \u4f3d\u9a6c\u7a7a\u95f4：\u8ba9\u5b58\u50a8\u503c\u540c\u65f6\u5339\u914d\u4eba\u773c\u611f\u77e5\u548c\u663e\u793a\u5668\u786c\u4ef6，\u5f62\u6210\u5b8c\u7f8e\u95ed\u73af<\/li>\n
    • \u9884\u4e58Alpha：\u7528\u7edf\u4e00\u7684\u6570\u5b66\u6846\u67b6\u540c\u65f6\u8868\u8fbe\u666e\u901a\u989c\u8272\u548c\u52a0\u6cd5\u989c\u8272<\/li>\n

      \u7406\u89e3\u8fd9\u4e24\u70b9，\u5c31\u80fd\u660e\u767d\u4e3a\u4ec0\u4e48Color32\u53ef\u4ee5\u5982\u6b64\u7b80\u6d01\u800c\u5f3a\u5927\u3002\u8bb0\u4f4f\u6838\u5fc3\u539f\u5219：\u663e\u793a\u548c\u611f\u77e5\u7528Color32，\u7269\u7406\u8ba1\u7b97\u8f6cRgba，\u5c31\u80fd\u5145\u5206\u53d1\u6325\u4e24\u79cd\u683c\u5f0f\u7684\u4f18\u52bf\u3002<\/p>\n

      \u52a0\u6cd5\u989c\u8272\u4e0d\u662f\u53e6\u7c7b，\u800c\u662f\u8fd9\u4e2a\u7edf\u4e00\u6846\u67b6\u7684\u81ea\u7136\u5ef6\u4f38\u2014\u2014\u5f53alpha=0\u65f6，RGB\u81ea\u7136\u6210\u4e3a\u5149\u6e90\u5f3a\u5ea6，\u5b8c\u7f8e\u878d\u5165\u6240\u6709\u8fd0\u7b97\u800c\u65e0\u9700\u7279\u5224\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

      Color32 \u4f7f\u7528\u624b\u518c（\u4fee\u8ba2\u7248）
      \n\u4e00\u3001\u7b80\u4ecb
      \nColor32 \u662f egui\/ecolor \u4e2d\u6700\u5e38\u7528\u7684\u989c\u8272\u7c7b\u578b，\u91c7\u752832\u4f4d\u5b58\u50a8\u7684\u9884\u4e58Alpha sRGBA\u683c\u5f0f\u3002\u5b83\u662f\u9762\u5411\u663e\u793a\u8bbe\u5907\u7684\u989c\u8272\u683c\u5f0f，\u6240\u6709\u64cd\u4f5c\u90fd\u5728\u4f3d\u9a6c\u7a7a\u95f4\u8fdb\u884c\u2014\u2014\u8fd9\u610f\u5473\u7740\u5b83\u7684\u6570\u503c\u53d8\u5316\u4e0e\u4eba\u773c\u611f\u77e5\u4e00\u81f4，\u540c\u65f6\u5b8c\u7f8e\u5339\u914d\u663e\u793a\u5668\u7684\u7269\u7406\u7279\u6027\u3002
      \n\u4ec0\u4e48\u662f\u4f3d\u9a6c\u7a7a\u95f4？
      \n\/\/ \u4f3d\u9a6c\u7a7a\u95f4\u662f\u8fde\u63a5\u7269\u7406\u4e16\u754c\u548c\u4eba\u773c\u611f\u77e5\u7684\u6865\u6881
      \n\u7269\u7406\u5149\u5f3a(\u7ebf\u6027) \u2190(\u03b3\u22482.2)\u2192 \u4f3d\u9a6c\u503c(\u5b58\u50a8<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[8423,206],"topic":[],"class_list":["post-77016","post","type-post","status-publish","format-standard","hentry","category-server","tag-egui","tag-rust"],"yoast_head":"\n\u3010egui\u3011Color32 \u4f7f\u7528\u624b\u518c - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.wsisp.com\/helps\/77016.html\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u3010egui\u3011Color32 \u4f7f\u7528\u624b\u518c - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"og:description\" content=\"Color32 \u4f7f\u7528\u624b\u518c（\u4fee\u8ba2\u7248） \u4e00\u3001\u7b80\u4ecb Color32 \u662f egui\/ecolor \u4e2d\u6700\u5e38\u7528\u7684\u989c\u8272\u7c7b\u578b，\u91c7\u752832\u4f4d\u5b58\u50a8\u7684\u9884\u4e58Alpha sRGBA\u683c\u5f0f\u3002\u5b83\u662f\u9762\u5411\u663e\u793a\u8bbe\u5907\u7684\u989c\u8272\u683c\u5f0f，\u6240\u6709\u64cd\u4f5c\u90fd\u5728\u4f3d\u9a6c\u7a7a\u95f4\u8fdb\u884c\u2014\u2014\u8fd9\u610f\u5473\u7740\u5b83\u7684\u6570\u503c\u53d8\u5316\u4e0e\u4eba\u773c\u611f\u77e5\u4e00\u81f4，\u540c\u65f6\u5b8c\u7f8e\u5339\u914d\u663e\u793a\u5668\u7684\u7269\u7406\u7279\u6027\u3002 \u4ec0\u4e48\u662f\u4f3d\u9a6c\u7a7a\u95f4？ \/\/ \u4f3d\u9a6c\u7a7a\u95f4\u662f\u8fde\u63a5\u7269\u7406\u4e16\u754c\u548c\u4eba\u773c\u611f\u77e5\u7684\u6865\u6881 \u7269\u7406\u5149\u5f3a(\u7ebf\u6027) \u2190(\u03b3\u22482.2)\u2192 \u4f3d\u9a6c\u503c(\u5b58\u50a8\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.wsisp.com\/helps\/77016.html\" \/>\n<meta property=\"og:site_name\" content=\"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"article:published_time\" content=\"2026-02-23T12:42:42+00:00\" \/>\n<meta name=\"author\" content=\"admin\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u4f5c\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"admin\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4\" \/>\n\t<meta name=\"twitter:data2\" content=\"8 \u5206\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/77016.html\",\"url\":\"https:\/\/www.wsisp.com\/helps\/77016.html\",\"name\":\"\u3010egui\u3011Color32 \u4f7f\u7528\u624b\u518c - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\",\"isPartOf\":{\"@id\":\"https:\/\/www.wsisp.com\/helps\/#website\"},\"datePublished\":\"2026-02-23T12:42:42+00:00\",\"dateModified\":\"2026-02-23T12:42:42+00:00\",\"author\":{\"@id\":\"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/358e386c577a3ab51c4493330a20ad41\"},\"breadcrumb\":{\"@id\":\"https:\/\/www.wsisp.com\/helps\/77016.html#breadcrumb\"},\"inLanguage\":\"zh-Hans\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.wsisp.com\/helps\/77016.html\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/77016.html#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"\u9996\u9875\",\"item\":\"https:\/\/www.wsisp.com\/helps\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"\u3010egui\u3011Color32 \u4f7f\u7528\u624b\u518c\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/#website\",\"url\":\"https:\/\/www.wsisp.com\/helps\/\",\"name\":\"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\",\"description\":\"\u9999\u6e2f\u670d\u52a1\u5668_\u9999\u6e2f\u4e91\u670d\u52a1\u5668\u8d44\u8baf_\u670d\u52a1\u5668\u5e2e\u52a9\u6587\u6863_\u670d\u52a1\u5668\u6559\u7a0b\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/www.wsisp.com\/helps\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"zh-Hans\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/358e386c577a3ab51c4493330a20ad41\",\"name\":\"admin\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"zh-Hans\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/gravatar.wp-china-yes.net\/avatar\/?s=96&d=mystery\",\"contentUrl\":\"https:\/\/gravatar.wp-china-yes.net\/avatar\/?s=96&d=mystery\",\"caption\":\"admin\"},\"sameAs\":[\"http:\/\/wp.wsisp.com\"],\"url\":\"https:\/\/www.wsisp.com\/helps\/author\/admin\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"\u3010egui\u3011Color32 \u4f7f\u7528\u624b\u518c - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.wsisp.com\/helps\/77016.html","og_locale":"zh_CN","og_type":"article","og_title":"\u3010egui\u3011Color32 \u4f7f\u7528\u624b\u518c - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","og_description":"Color32 \u4f7f\u7528\u624b\u518c（\u4fee\u8ba2\u7248） \u4e00\u3001\u7b80\u4ecb Color32 \u662f egui\/ecolor \u4e2d\u6700\u5e38\u7528\u7684\u989c\u8272\u7c7b\u578b，\u91c7\u752832\u4f4d\u5b58\u50a8\u7684\u9884\u4e58Alpha sRGBA\u683c\u5f0f\u3002\u5b83\u662f\u9762\u5411\u663e\u793a\u8bbe\u5907\u7684\u989c\u8272\u683c\u5f0f，\u6240\u6709\u64cd\u4f5c\u90fd\u5728\u4f3d\u9a6c\u7a7a\u95f4\u8fdb\u884c\u2014\u2014\u8fd9\u610f\u5473\u7740\u5b83\u7684\u6570\u503c\u53d8\u5316\u4e0e\u4eba\u773c\u611f\u77e5\u4e00\u81f4，\u540c\u65f6\u5b8c\u7f8e\u5339\u914d\u663e\u793a\u5668\u7684\u7269\u7406\u7279\u6027\u3002 \u4ec0\u4e48\u662f\u4f3d\u9a6c\u7a7a\u95f4？ \/\/ \u4f3d\u9a6c\u7a7a\u95f4\u662f\u8fde\u63a5\u7269\u7406\u4e16\u754c\u548c\u4eba\u773c\u611f\u77e5\u7684\u6865\u6881 \u7269\u7406\u5149\u5f3a(\u7ebf\u6027) \u2190(\u03b3\u22482.2)\u2192 \u4f3d\u9a6c\u503c(\u5b58\u50a8","og_url":"https:\/\/www.wsisp.com\/helps\/77016.html","og_site_name":"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","article_published_time":"2026-02-23T12:42:42+00:00","author":"admin","twitter_card":"summary_large_image","twitter_misc":{"\u4f5c\u8005":"admin","\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4":"8 \u5206"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/www.wsisp.com\/helps\/77016.html","url":"https:\/\/www.wsisp.com\/helps\/77016.html","name":"\u3010egui\u3011Color32 \u4f7f\u7528\u624b\u518c - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","isPartOf":{"@id":"https:\/\/www.wsisp.com\/helps\/#website"},"datePublished":"2026-02-23T12:42:42+00:00","dateModified":"2026-02-23T12:42:42+00:00","author":{"@id":"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/358e386c577a3ab51c4493330a20ad41"},"breadcrumb":{"@id":"https:\/\/www.wsisp.com\/helps\/77016.html#breadcrumb"},"inLanguage":"zh-Hans","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.wsisp.com\/helps\/77016.html"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/www.wsisp.com\/helps\/77016.html#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"\u9996\u9875","item":"https:\/\/www.wsisp.com\/helps"},{"@type":"ListItem","position":2,"name":"\u3010egui\u3011Color32 \u4f7f\u7528\u624b\u518c"}]},{"@type":"WebSite","@id":"https:\/\/www.wsisp.com\/helps\/#website","url":"https:\/\/www.wsisp.com\/helps\/","name":"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","description":"\u9999\u6e2f\u670d\u52a1\u5668_\u9999\u6e2f\u4e91\u670d\u52a1\u5668\u8d44\u8baf_\u670d\u52a1\u5668\u5e2e\u52a9\u6587\u6863_\u670d\u52a1\u5668\u6559\u7a0b","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.wsisp.com\/helps\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"zh-Hans"},{"@type":"Person","@id":"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/358e386c577a3ab51c4493330a20ad41","name":"admin","image":{"@type":"ImageObject","inLanguage":"zh-Hans","@id":"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/image\/","url":"https:\/\/gravatar.wp-china-yes.net\/avatar\/?s=96&d=mystery","contentUrl":"https:\/\/gravatar.wp-china-yes.net\/avatar\/?s=96&d=mystery","caption":"admin"},"sameAs":["http:\/\/wp.wsisp.com"],"url":"https:\/\/www.wsisp.com\/helps\/author\/admin"}]}},"_links":{"self":[{"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/posts\/77016","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/comments?post=77016"}],"version-history":[{"count":0,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/posts\/77016\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/media?parent=77016"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/categories?post=77016"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/tags?post=77016"},{"taxonomy":"topic","embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/topic?post=77016"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}