Thanks, I was about to write a similar pull request. Imho this whole color thing should be the less magical possible. It should just inherit the app themes colors and allow for substitutions without worrying too much about what the users set.

Exactly. Material design guidelines are just guidelines, not specific rules we have to follow.

@mikemilla Thanks. Very cool. That is what i want.

Hi @mikemilla when I started using this new ability (great ability any way, I was watting for this), apps crahs in terminal with api < 21.
Do i have to open a new issue?

Hey, how do I use this? Which method do I call to set the custom icon colors?

@DanielKou you set colors using the constructor, like this:
mBottomBar = BottomBar.attach(this, savedInstanceState, Color.parseColor("#FFFFFF"), // Background Color Color.parseColor("#0DA5F2"), // Tab Item Color 0.25f);

@Studentessa I can't remember if I tested it on a preAPI21 device or not! Feel free to make adjustments to this code if you'd like or I will investigate when I get a chance.

Also, thank you for addressing Daniel's issue :)

@mikemilla the problem is not on preAPI21, it's using tablets with mIsTabletMode activate (I was testing on a preAPI21 tablet deviced).
I will try to fixed the problem, I have found why is the problem (mInActiveColor is null when we set customs colors)!

@Studentessa ok, thank you for finding it :)