Ok. This is a minimal sample code of the problem.

If I specify any color for “item1″‘s icon when the MenuItem is disabled the icon won’t gray out.

So the question is if this is a QML bug or There is a way to evade the problem.

I have to use the transparent color because otherwise the icon(Which contains transparent pixels) will turn black.

import QtQuick 6.5
import QtQuick.Controls 6.5
import UntitledProject2

Rectangle {
    id: rectangle
    width: 200
    height: 200

    state: "State1"

    Menu {
        id: menu
        title: "Menu"

        MenuItem {
            id: item1
            text: "Item 1"

            icon {
                source: "images/cam1.png"
                // The issue is here. removing this line will give the disabled effect on icon.
                color: "transparent"
            }
        }
    }

    Button {
        id: button
        text: qsTr("Press me")
        anchors.verticalCenter: parent.verticalCenter
        anchors.horizontalCenter: parent.horizontalCenter

        Connections {
            target: button
            onClicked: menu.open()
        }
    }

    Button {
        id: stateButton
        text: qsTr("Change state")
        anchors.verticalCenter: parent.verticalCenter
        anchors.verticalCenterOffset: 45
        anchors.horizontalCenter: parent.horizontalCenter

        Connections {
            target: rectangle
            onClicked: {
                if (rectangle.state === "State2")
                    rectangle.state = "State1"
                else
                    rectangle.state = "State2"
            }
        }
    }
    states: [
        State {
            name: "State1"

            PropertyChanges {
                target: item1
                enabled: false
            }

            PropertyChanges {
                target: subMenu
                enabled: false
            }
        },
        State {
            name: "State2"
        }
    ]
}

I tried changing color when changing state to values other than “transparent” hoping the problem is with transparent value. But I found out specifying any color would cause the icon to not have disabled effect.