Change background image on all pages

[nexo]

Add this theme component by @Johani to your site:

StackBlur backgrounds

This is not supposed to be used as a theme by itself. This is a theme component that’s supposed to handle the background only. It’s supposed to be incorporated into your theme design. Repo: https://github.com/hnb-ku/StackBlur-backgrounds-discourse-theme-component This component uses Mario Klingemann’s StackBlur library (2kb gzipped - MIT license) to generate high scroll performance blurred backgrounds based on an image you select in a <canvas> element. Examples: (these are compr…