feat: add lemonade theme color (#3666)

frontend/appflowy_flutter/packages/flowy_infra/lib/colorscheme/colorscheme.dart

@@ -6,6 +6,7 @@ import 'package:freezed_annotation/freezed_annotation.dart';
 import 'default_colorscheme.dart';
 import 'dandelion.dart';
 import 'lavender.dart';
+import 'lemonade.dart';
 
 part 'colorscheme.g.dart';
 
@@ -23,6 +24,10 @@ const Map<String, List<FlowyColorScheme>> themeMap = {
     DandelionColorScheme.light(),
     DandelionColorScheme.dark(),
   ],
+  BuiltInTheme.lemonade: [
+    LemonadeColorScheme.light(),
+    LemonadeColorScheme.dark(),
+  ],
   BuiltInTheme.lavender: [
     LavenderColorScheme.light(),
     LavenderColorScheme.dark(),

frontend/appflowy_flutter/packages/flowy_infra/lib/colorscheme/dandelion.dart

@@ -112,7 +112,7 @@ class DandelionColorScheme extends FlowyColorScheme {
           main1: _darkMain1,
           main2: _darkMain1,
           shadow: const Color(0xff0F131C),
-          sidebarBg: const Color(0xff232B38),
+          sidebarBg: const Color(0xff25300e),
           divider: _darkShader3,
           topbarBg: _darkShader1,
           icon: _darkShader5,

frontend/appflowy_flutter/packages/flowy_infra/lib/colorscheme/lemonade.dart

@@ -0,0 +1,137 @@
+import 'package:flutter/material.dart';
+
+import 'colorscheme.dart';
+
+const _black = Color(0xff000000);
+const _white = Color(0xFFFFFFFF);
+const _lightBg1 = Color(0xFFFFD13E);
+const _lightShader1 = Color(0xff333333);
+const _lightShader3 = Color(0xff828282);
+const _lightShader5 = Color(0xffe0e0e0);
+const _lightShader6 = Color(0xfff2f2f2);
+const _lightDandelionYellow = Color(0xffffcb00);
+const _lightDandelionLightYellow = Color(0xffffdf66);
+const _lightTint9 = Color(0xffe1fbff);
+
+const _darkShader1 = Color(0xff131720);
+const _darkShader2 = Color(0xff1A202C);
+const _darkShader3 = Color(0xff363D49);
+const _darkShader5 = Color(0xffBBC3CD);
+const _darkShader6 = Color(0xffF2F2F2);
+const _darkMain1 = Color(0xffffcb00);
+const _darkInput = Color(0xff282E3A);
+
+// Derive from [DandelionColorScheme]
+// Use a light yellow color in the sidebar intead of a green color in Dandelion
+// Some field name are still included 'Dandelion' to indicate they are the same color as the one in Dandelion
+class LemonadeColorScheme extends FlowyColorScheme {
+  const LemonadeColorScheme.light()
+      : super(
+          surface: Colors.white,
+          hover: const Color(0xFFe0f8ff),
+          // hover effect on setting value
+          selector: _lightDandelionLightYellow,
+          red: const Color(0xfffb006d),
+          yellow: const Color(0xffffd667),
+          green: const Color(0xff66cf80),
+          shader1: const Color(0xff333333),
+          shader2: const Color(0xff4f4f4f),
+          shader3: const Color(0xff828282),
+          // disable text color
+          shader4: const Color(0xffbdbdbd),
+          shader5: _lightShader5,
+          shader6: const Color(0xfff2f2f2),
+          shader7: _black,
+          bg1: _lightBg1,
+          bg2: const Color(0xffedeef2),
+          // Hover color on trash button
+          bg3: _lightDandelionYellow,
+          bg4: const Color(0xff2c144b),
+          tint1: const Color(0xffe8e0ff),
+          tint2: const Color(0xffffe7fd),
+          tint3: const Color(0xffffe7ee),
+          tint4: const Color(0xffffefe3),
+          tint5: const Color(0xfffff2cd),
+          tint6: const Color(0xfff5ffdc),
+          tint7: const Color(0xffddffd6),
+          tint8: const Color(0xffdefff1),
+          tint9: _lightTint9,
+          main1: _lightDandelionYellow,
+          // cursor color
+          main2: _lightDandelionYellow,
+          shadow: _black,
+          sidebarBg: const Color(0xfffaf0c8),
+          divider: _lightShader6,
+          topbarBg: _white,
+          icon: _lightShader1,
+          text: _lightShader1,
+          input: _white,
+          hint: _lightShader3,
+          primary: _lightDandelionYellow,
+          onPrimary: _white,
+          // hover color in sidebar
+          hoverBG1: _lightDandelionYellow,
+          // tool bar hover color
+          hoverBG2: _lightDandelionLightYellow,
+          hoverBG3: _lightShader6,
+          hoverFG: _lightShader1,
+          questionBubbleBG: _lightDandelionLightYellow,
+          progressBarBGColor: _lightTint9,
+          toolbarColor: _lightShader1,
+          toggleButtonBGColor: _lightDandelionYellow,
+          calendarWeekendBGColor: const Color(0xFFFBFBFC),
+          gridRowCountColor: _black,
+        );
+
+  const LemonadeColorScheme.dark()
+      : super(
+          surface: const Color(0xff292929),
+          hover: const Color(0xff1f1f1f),
+          selector: const Color(0xff333333),
+          red: const Color(0xfffb006d),
+          yellow: const Color(0xffffd667),
+          green: const Color(0xff66cf80),
+          shader1: _white,
+          shader2: _darkShader2,
+          shader3: const Color(0xff828282),
+          shader4: const Color(0xffbdbdbd),
+          shader5: _darkShader5,
+          shader6: _darkShader6,
+          shader7: _white,
+          bg1: const Color(0xFFD5A200),
+          bg2: _black,
+          bg3: _darkMain1,
+          bg4: const Color(0xff2c144b),
+          tint1: const Color(0x4d9327FF),
+          tint2: const Color(0x66FC0088),
+          tint3: const Color(0x4dFC00E2),
+          tint4: const Color(0x80BE5B00),
+          tint5: const Color(0x33F8EE00),
+          tint6: const Color(0x4d6DC300),
+          tint7: const Color(0x5900BD2A),
+          tint8: const Color(0x80008890),
+          tint9: const Color(0x4d0029FF),
+          main1: _darkMain1,
+          main2: _darkMain1,
+          shadow: _black,
+          sidebarBg: const Color(0xff232B38),
+          divider: _darkShader3,
+          topbarBg: _darkShader1,
+          icon: _darkShader5,
+          text: _darkShader5,
+          input: _darkInput,
+          hint: _darkShader5,
+          primary: _darkMain1,
+          onPrimary: _darkShader1,
+          hoverBG1: _darkMain1,
+          hoverBG2: _darkMain1,
+          hoverBG3: _darkShader3,
+          hoverFG: _darkShader1,
+          questionBubbleBG: _darkShader3,
+          progressBarBGColor: _darkShader3,
+          toolbarColor: _darkInput,
+          toggleButtonBGColor: _darkShader1,
+          calendarWeekendBGColor: const Color(0xff121212),
+          gridRowCountColor: _darkMain1,
+        );
+}

frontend/appflowy_flutter/packages/flowy_infra/lib/theme.dart

@@ -5,6 +5,7 @@ import 'plugins/service/plugin_service.dart';
 class BuiltInTheme {
   static const String defaultTheme = 'Default';
   static const String dandelion = 'Dandelion';
+  static const String lemonade = 'Lemonade';
   static const String lavender = 'Lavender';
 }
 

frontend/appflowy_flutter/test/unit_test/theme/theme_test.dart

@@ -47,6 +47,7 @@ void main() {
             BuiltInTheme.defaultTheme,
             BuiltInTheme.dandelion,
             BuiltInTheme.lavender,
+            BuiltInTheme.lemonade,
           ]),
         );
         expect(theme.lightTheme, isA<FlowyColorScheme>());