Appmenu plasmoid does not correct show the color of menu item's icon
When the appmenu is not used, the highlight color of menu item's icon is correct. For example, when the menu item has mouse hover, both the icon and the text color inverts:
However, on the appmenu, when the menu item has focus (mouse hover), only the text color is correctly inversed, the icon color keeps dark and can't be seen clearly: