- rework the entry style to work in both hc and normal
- rework drawing functions to accommodate hc
- buttons all get borders under hc now
- window picker titles are more legible
- alt+tab switcher tiles are visible
- dash is made more visible under hc
- popover menus are all more visible under hc
- search results borders are improved
- calendar days have a different look under hc
- overview bg is completely black in hc
Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/2527>
- remove tiled preview corners; merge with misc.scss
- sync general label styles from libadwaita
- use variables in ibus css
- remove redundant spacing variable as its equal to padding
- use more global styles in screenshot css
- tidy up entry styles
- cleanup the networks dialog stylesheet
- make colours less dark
- cleanup the popover stylesheet
- cleanup the mixins for tiles and overview icons
- adjust the button style definitions on checked style
- add osd button definitions
Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/2172>
On the new horizontal workspace-thumbnails, the old placeholder from
vertical dash appeared too small, and was easily hidden behind the
dragged window/icon. Rotate the placeholder 90 degrees to better fill
the spacing between thumbnails.
Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1801>
