Which color should be the "dark" material icon?
On the official documentation (https://www.google.com/design/spec/style/icons.html#icons-system-icons at the bottom) it is 54 % black (grey), but all downloads of the material icons are either white or 100 % black.
Also on the new official site https://www.google.com/design/icons/ you can download either white or black, but not "grey"!
So I have to set 54 % to all downloaded icons for myself? Or did I miss something?
I am too late to reply but nevertheless I will answer the question since it may save lot of time for some developers. I myself being a developer struggled a lot while creating icons in different colors and since I am not a designer it was really hard. After lot of searching I found this plugin in Android Studio called Android Material Icon Generator. It creates all material icons in all colors with various sizes and also with opacity factor. This is great help for us developers who aren't good at designing. Also no need to download icons separately, This plugin is enough.