Squashed 'themes/admin/shiny/' content from commit eaa29b9

git-subtree-dir: themes/admin/shiny
git-subtree-split: eaa29b97e105281306faed6df413f1a759859ead
Merge commit 'c83790f9a2037ceca63bbc357e8e2c712890e319' as 'themes/admin/shiny'