[libadwaita] (17 commits) Non-fast-forward update to branch wip/exalm/accent

[Alexander Mikhaylenko <alexm src gnome org>]

The branch 'wip/exalm/accent' 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:

  6e6529d... stylesheet: Rename selected_bg/fg_color to accent_color/tex
  6f445b6... stylesheet: Drop an unused color
  d47a249... stylesheet: Rework filled button states again
  b26353f... stylesheet: Use lighter hover for fills as well
  1a37932... stylesheet: Make sure switch and progress bar recoloring wo
  8b13cac... stylesheet: Ensure menus are recolorable
  7eae944... stylesheet: Ensure status page is recolorable
  8beca10... stylesheet: Don't add background to message dialog headers
  71c7589... stylesheet: Unify accent, destructive, success, warning, er
  989e35e... stylesheet: Expose all the overridable colors publicly
  599be81... stylesheet: Consistently use gtkalpha()
  3c433bb... stylesheet: Add and use gtkmix()
  f06748d... stylesheet: Implement recoloring for accent and a few other
  aac3ac4... stylesheet: Use a more contrasty accent for foreground
  22057fe... stylesheet: Add the .accent style class
  ca580ce... doc: Mention the new accent color in migration guide

Commits added to the branch:

  fd6203c... stylesheet: Move header bar padding into an internal box (*)
  83f6741... stylesheet: Rename selected_bg/fg_color to accent_color/tex
  20b081b... stylesheet: Drop an unused color
  8238a3f... stylesheet: Rework filled button states again
  f4a246e... stylesheet: Use lighter hover for fills as well
  8727138... stylesheet: Make sure switch and progress bar recoloring wo
  f5199c6... stylesheet: Ensure menus are recolorable
  2d8d40f... stylesheet: Ensure status page is recolorable
  7e0de41... stylesheet: Don't add background to message dialog headers
  46c3775... stylesheet: Unify accent, destructive, success, warning, er
  4723344... stylesheet: Expose all the overridable colors publicly
  de9d728... stylesheet: Consistently use gtkalpha()
  108c35f... stylesheet: Add and use gtkmix()
  cc50abf... stylesheet: Implement recoloring for accent and a few other
  c5d480c... stylesheet: Use a more contrasty accent for foreground
  9ac415d... stylesheet: Add the .accent style class
  b4723e4... doc: Mention the new accent color in migration guide

(*) This commit already existed in another branch; no separate mail sent