data: Add a custom featured colour for Steam
Steam appears to be one of the corner cases where the built-in heuristics for extracting key colours don’t manage to pick ones which have enough contrast with the foreground text colour.
Rather than fiddle with the heuristics and potentially break them for other apps (i.e. requiring a lot of testing), add an override key colour for Steam.
Signed-off-by: Philip Withnall pwithnall@endlessos.org
Fixes: #1223 (closed)