Drupal 8 and 9 Admin Theme. (sub theme of seven)
This is an administration theme for Drupal 8 & 9 that I have been using on most of my drupal sites. It's a subtheme of Seven and loosely based on the starter theme "lightship" https://github.com/devcollaborative/drupal8-devcollab-lightship
It's basically just what I feel are some css improvements and a few alter hook implementations to get a nicer admin experience with some of the modules I commonly use.
It's rough around the edges and needs to be cleaned up a bit, but it works well for my cases.
If you are editing the sass:
npm installwill install all the needed node_modules for compiling the cssgulp watchwill watch the sass folder and compile the css when the scss files are changed.
gulp watch - watches sass directories for changes and recompiles whenever you save a change
gulp sass - compiles sass into CSS
gulp clean:css - deletes compiled CSS
gulp build - simple one time build task