Hard transition when entering selection mode
@sils
Submitted by Lasse Schuirmann Link to original bug (#733267)
Description
When entering selection mode the appropriate UI elements are shown with no animation. This is a really hard transition and specified otherwise at https://wiki.gnome.org/Design/OS/SelectionPattern
Boxes is really good at that, for a reference. (Clocks and Notes e.g. don't transition the topbar, I'll file appropriate bugs there.)
So we need a transition for:
- sliding the secondary selection bar in (attention: this depends on bug #733250 so wait until this is solved)
- make a smooth transition to blue for the topbar