feat(ui): add separate icon and text colorization for CustomButton

- Add colorizeSystemText setting for text color (icon only was already supported)
- JSON parse supports iconColor and textColor fields separately
- Legacy "color" field still works for both icon and text
- Enable colorization no longer depends on show icon setting
- Refactor resolveColor helper to eliminate duplicate code

Modules/Bar/Widgets/CustomButton.qml

@@ -146,8 +146,13 @@ Item {
       return widgetSettings.colorizeSystemIcon;
     return widgetMetadata.colorizeSystemIcon !== undefined ? widgetMetadata.colorizeSystemIcon : "none";
   }
+  readonly property string colorizeSystemText: {
+    if (widgetSettings.colorizeSystemText !== undefined)
+      return widgetSettings.colorizeSystemText;
+    return widgetMetadata.colorizeSystemText !== undefined ? widgetMetadata.colorizeSystemText : "none";
+  }
 
-  readonly property bool isColorizing: enableColorization && colorizeSystemIcon !== "none"
+  readonly property bool isColorizing: enableColorization && (colorizeSystemIcon !== "none" || colorizeSystemText !== "none")
 
   // Get color value from color name (returns null for invalid names)
   function _getColorValue(colorName, forHover) {
@@ -188,8 +193,10 @@ Item {
     return isHover ? Color.mOnHover : Color.mOnSurface;
   }
 
-  readonly property color iconColor: _resolveIconColor(_dynamicColor, colorizeSystemIcon, false)
-  readonly property color iconHoverColor: _resolveIconColor(_dynamicColor, colorizeSystemIcon, true)
+  readonly property color iconColor: _resolveIconColor(_dynamicIconColor || _dynamicColor, colorizeSystemIcon, false)
+  readonly property color iconHoverColor: _resolveIconColor(_dynamicIconColor || _dynamicColor, colorizeSystemIcon, true)
+  readonly property color textColor: _resolveIconColor(_dynamicTextColor || _dynamicColor, colorizeSystemText, false)
+  readonly property color textHoverColor: _resolveIconColor(_dynamicTextColor || _dynamicColor, colorizeSystemText, true)
 
   implicitWidth: pill.width
   implicitHeight: pill.height
@@ -208,7 +215,8 @@ Item {
     autoHide: false
     forceOpen: _pillForceOpen
     forceClose: !_pillForceOpen
-    customTextIconColor: iconColor
+    customIconColor: iconColor
+    customTextColor: textColor
 
     // Helper function to build tooltip content
     function _buildTooltipContent() {
@@ -287,6 +295,8 @@ Item {
   property string _dynamicIcon: ""
   property string _dynamicTooltip: ""
   property string _dynamicColor: ""
+  property string _dynamicIconColor: ""
+  property string _dynamicTextColor: ""
 
   // Maximum length for text display before scrolling (different values for horizontal and vertical)
   readonly property var maxTextLength: {
@@ -415,11 +425,23 @@ Item {
         const text = parsed.text || "";
         const icon = parsed.icon || "";
         let tooltip = parsed.tooltip || "";
-        const color = parsed.color || "";
-
-        // Validate color value
+        
+        // Support both "color" (legacy) and "iconColor"/"textColor" (new)
+        const legacyColor = parsed.color || "";
+        const iconColorKey = parsed.iconColor || "";
+        const textColorKey = parsed.textColor || "";
+        
         const validColors = ["primary", "secondary", "tertiary", "error", "none"];
-        const validColor = (color && validColors.includes(color)) ? color : "";
+        
+        // Helper to resolve color: legacy > specific > none
+        function resolveColor(legacy, specific) {
+          if (legacy && validColors.includes(legacy)) return legacy;
+          if (specific && validColors.includes(specific)) return specific;
+          return "";
+        }
+        
+        const resolvedIconColor = resolveColor(legacyColor, iconColorKey);
+        const resolvedTextColor = resolveColor(legacyColor, textColorKey);
 
         if (checkCollapse(text)) {
           _scrollState.originalText = "";
@@ -427,6 +449,8 @@ Item {
           _dynamicIcon = "";
           _dynamicTooltip = "";
           _dynamicColor = "";
+          _dynamicIconColor = "";
+          _dynamicTextColor = "";
           _scrollState.needsScrolling = false;
           _scrollState.phase = 0;
           _scrollState.phaseCounter = 0;
@@ -446,7 +470,9 @@ Item {
           scrollTimer.stop();
         }
         _dynamicIcon = icon;
-        _dynamicColor = validColor;
+        _dynamicColor = legacyColor;  // Keep legacy color for fallback
+        _dynamicIconColor = resolvedIconColor;
+        _dynamicTextColor = resolvedTextColor;
 
         _dynamicTooltip = toHtml(tooltip);
         _scrollState.offset = 0;
@@ -462,6 +488,8 @@ Item {
       _dynamicIcon = "";
       _dynamicTooltip = "";
       _dynamicColor = "";
+      _dynamicIconColor = "";
+      _dynamicTextColor = "";
       _scrollState.needsScrolling = false;
       _scrollState.phase = 0;
       _scrollState.phaseCounter = 0;
@@ -482,6 +510,8 @@ Item {
     }
     _dynamicIcon = "";
     _dynamicColor = "";
+    _dynamicIconColor = "";
+    _dynamicTextColor = "";
     _dynamicTooltip = toHtml(contentStr);
     _scrollState.offset = 0;
   }

Modules/Panels/Settings/Bar/WidgetSettings/CustomButtonSettings.qml

@@ -32,6 +32,7 @@ ColumnLayout {
   property bool valueShowTextTooltip: widgetData.showTextTooltip !== undefined ? widgetData.showTextTooltip : widgetMetadata.showTextTooltip
   property bool valueEnableColorization: widgetData.enableColorization !== undefined ? widgetData.enableColorization : widgetMetadata.enableColorization
   property string valueColorizeSystemIcon: widgetData.colorizeSystemIcon !== undefined ? widgetData.colorizeSystemIcon : widgetMetadata.colorizeSystemIcon
+  property string valueColorizeSystemText: widgetData.colorizeSystemText !== undefined ? widgetData.colorizeSystemText : widgetMetadata.colorizeSystemText
   property string valueIpcIdentifier: widgetData.ipcIdentifier !== undefined ? widgetData.ipcIdentifier : widgetMetadata.ipcIdentifier
   property string valueGeneralTooltipText: widgetData.generalTooltipText !== undefined ? widgetData.generalTooltipText : widgetMetadata.generalTooltipText
 
@@ -67,6 +68,7 @@ ColumnLayout {
     settings.textIntervalMs = parseInt(textIntervalInput.text || textIntervalInput.placeholderText, 10);
     settings.enableColorization = valueEnableColorization;
     settings.colorizeSystemIcon = valueColorizeSystemIcon;
+    settings.colorizeSystemText = valueColorizeSystemText;
     settings.ipcIdentifier = valueIpcIdentifier;
     settings.generalTooltipText = valueGeneralTooltipText;
     settingsChanged(settings);
@@ -156,14 +158,13 @@ ColumnLayout {
                  valueEnableColorization = checked;
                  saveSettings();
                }
-    visible: valueShowIcon
     defaultValue: widgetMetadata.enableColorization
   }
 
   NColorChoice {
-    visible: valueShowIcon && valueEnableColorization
+    visible: valueEnableColorization
     label: I18n.tr("common.select-icon-color")
-    description: I18n.tr("bar.custom-button.color-selection-description")
+    description: I18n.tr("bar.custom-button.icon-color-selection-description")
     currentKey: valueColorizeSystemIcon
     onSelected: key => {
                   valueColorizeSystemIcon = key;
@@ -172,6 +173,18 @@ ColumnLayout {
     defaultValue: widgetMetadata.colorizeSystemIcon
   }
 
+  NColorChoice {
+    visible: valueEnableColorization
+    label: I18n.tr("common.select-text-color")
+    description: I18n.tr("bar.custom-button.text-color-selection-description")
+    currentKey: valueColorizeSystemText
+    onSelected: key => {
+                  valueColorizeSystemText = key;
+                  saveSettings();
+                }
+    defaultValue: widgetMetadata.colorizeSystemText
+  }
+
   NTextInput {
     Layout.fillWidth: true
     label: I18n.tr("bar.custom-button.general-tooltip-text-label")