[gtk] (9 commits) ...Merge branch 'wip/exalm/polish' into 'master'

[Matthias Clasen <matthiasc src gnome org>]

Summary of changes:

  3a5fdfc... adwaita: Update app icon shadow (*)
  f47aba0... adwaita: Make popover border transparent (*)
  40c8d8b... adwaita: Use tabular figures where appropriate (*)
  c17aa12... adwaita: Don't style window menu button anymore (*)
  24e3556... adwaita: Remove a redundant -gtk-icon-shadow: none (*)
  059cc3b... video: Use more appropriate revealer transition (*)
  2f898e8... widget-factory: Align spinbutton in the list on page 2 (*)
  efe2186... widget-factory: Remove duplicate margin-start (*)
  2415c02... Merge branch 'wip/exalm/polish' into 'master'

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