* Use ContextCompat when accessing color resources #1924

* Update tests for #1924

* Fix incorrect color

A previous commit changed a color incorrectly, related to some mistake
made when merging changes.

* Add compat extension to Context

* Replace ContextCompat calls with Context extension functions

* Update tests

* Add missing imports

* Fix tests

* Fix lint

Co-authored-by: Matthias Urhahn <matthias.urhahn@sap.com>