Change retry & subscribe buttons background color based on service color

[B0pol]

What is it?

• Bug fix (user facing)
• Feature (user facing)
• Code base improvement (dev facing)
• Meta improvement to the project (dev facing)

Description of the changes in your PR

• change retry (when there is a network error) button color, to follow service's color

Fixes the following issue(s)

• fixes Different colors of "Retry" button and services #1134

Testing apk

app-debug.zip

Screenshots

Agreement

• I carefully read the contribution guidelines and agree to them.

[Stypox]

I guess this is already done by #3482 (will test in a bit and report back) not true

[Stypox]

Is RedButton used anywhere else? If that's not the case it could be removed

[B0pol]

It's used for subscribe button

[Stypox]

Can't the subscribe button also be changed? Its red background looks a little bit strage on platforms other than youtube, and in material guidelines buttons usually have the primary color (go here and search for A contained button has a text label, a filled container and an optional icon.. In the section below the background color of the button in ?attr/colorPrimary).

[B0pol]

Done @Stypox

[Stypox]

Code looks good and everything works fine after some testing :-D