After I’ve seen a few examples and implemented it in my new App, I noticed that the navigation drawer icon in Play Music (Holo Light) is much brighter than provided in the Developer Docs. Therefore I’ve analysed this icon and was positive surprised that it follows the same rules as described in the google Iconography.
Enabled: 80% opacity
Disabled: 30% opacity
I have newly created the navigation drawer icon, but with the colors that follow the Google design rules. The zip contains the PNGs in all sizes: “mdpi, hdpi, xhdpi and xxhdpi“. Respectively in Holo Light and Holo Dark.