Get rid of the flag, without making any substantial changes to the
code. A follow-up commit will merge the CSS into base rules.
Bug: T307188
Change-Id: I601df5047d0db3cfb9559538487d3d39bb6c7cf4
Including an user options to enable/disable the scheme. Defaults
to false. Feature is only availible together with the new more
accessibile color scheme as the CSS depends on each other.
Set behind a new temporary feature flag.
Bug: T305027
Change-Id: I46d240a30eda5a1526ada1fe9b724f7b4594b426