[gtk] (3 commits) Non-fast-forward update to branch color-picker

[Matthias Clasen <matthiasc src gnome org>]

The branch 'color-picker' was changed in a way that was not a fast-forward update.
NOTE: This may cause problems for people pulling from the branch. For more information,
please see:

 https://wiki.gnome.org/Git/Help/NonFastForward

Commits removed from the branch:

  221157d... color editor: Add a color picker button
  24ae221... Add a color picker implementation for portals
  d439a12... Add a color picker implementation for gnome-shel

Commits added to the branch:

  47c1251... color editor: Add a color picker button
  119d33d... Add a color picker implementation for portals
  581664d... Add a color picker implementation for gnome-shel