update

src/Qt5/imports/FluentUI/Controls/ColorPicker/ColorPicker.qml

@@ -197,23 +197,14 @@ Rectangle {
     }
 
     function _hsla(h, s, b, a) {
+        if(!enableAlphaChannel){
+            a = 1
+        }
         var lightness = (2 - s)*b
         var satHSL = s*b/((lightness <= 1) ? lightness : 2 - lightness)
         lightness /= 2
-
         var c = Qt.hsla(h, satHSL, lightness, a)
-
         colorChanged(c)
-
-        return c
-    }
-
-    function _rgb(rgb, a) {
-
-        var c = Qt.rgba(rgb.r, rgb.g, rgb.b, a)
-
-        colorChanged(c)
-
         return c
     }
 

src/Qt5/imports/FluentUI/Controls/FluColorPicker.qml

@@ -11,6 +11,7 @@ Button{
     implicitWidth: width
     implicitHeight: height
     property alias colorValue: container.colorValue
+    property alias enableAlphaChannel: container.enableAlphaChannel
     background:
         Rectangle{
         id:layout_color
@@ -27,7 +28,7 @@ Button{
             anchors.fill: parent
             anchors.margins: 4
             radius: 5
-            color: container.colorValue
+            color: control.colorValue
         }
 
     }

src/Qt5/imports/FluentUI/Controls/FluColorView.qml

@@ -6,6 +6,7 @@ import "ColorPicker"
 Item {
     id:control
     property alias colorValue: color_picker.colorValue
+    property alias enableAlphaChannel: color_picker.enableAlphaChannel
     property int radius: 5
     width: color_picker.width+10
     height: color_picker.height