[feature] Add global instance CSS customization setting (#3352)

Allow instance admins to add custom CSS that will affect
every page of their instance.

This is done with a new CustomCSS instance setting that
works pretty much exactly like the Users CustomCSS property.
This custom CSS is then requested for every page load.
User styles/themes take precedence over this CSS.

Co-authored-by: tobi <tobi.smethurst@protonmail.com>
This commit is contained in:
Victor Dyotte 2024-12-02 06:24:48 -05:00 committed by GitHub
commit 9609c4550d
No known key found for this signature in database
GPG key ID: B5690EEEBB952194
25 changed files with 158 additions and 27 deletions

View file

@ -167,3 +167,11 @@ Links to the set contact account and/or email address will appear on the footer
The selected **contact user** must be an active (not suspended) admin and/or moderator on the instance.
If you're on a single-user instance and you give admin privileges to your main account, you can just fill in your own username here; you don't need to make a separate admin account just for this.
### Instance Custom CSS
custom CSS allows you to further customize the way your instance looks when visited through a browser.
This custom CSS will be applied to all pages of your instance. Users themes and CSS still take precedence over this customization.
See the [Custom CSS](./custom_css.md) page for some tips on writing custom CSS for your instance.