Is your feature request related to a problem? Please describe.
Nightly fails multiple times for a long period of time and goes unnoticed for weeks and months, and we always get to kn

Custom css themes shouldn't be too difficult. Probably pass in a url parameter for the them you want and then handle it in the template. Night mode has been requested.

Use new presets

The wikipedia api provides a section an id (1 upwards), it'd be nice if that would also be included.

Example: https://en.wikipedia.org/w/api.php?format=xml&action=parse&prop=sections&page=License

When you open (right clic) a link in a new tab, would be better to just create it and keep the current active one open.

First reported in #635