This seems to be a good solution and exactly what i asked for, thanks for the help, the dark background is superb will give it a try now.
But don't forget that you trust this browser extension to access anything of your data on webpages. I quote from Firefox's manage extensions "Permissions and data" tab of Dark Reader:
Required permissions for core functionality:
- Access your data for all websites
- Access browser tabs
To do its thing, Dark Reader has to inject CSS and code into every page's code where it's enabled.
Dark Reader is a very popular browser extension and fortunately open-source, but seriously how many have the knowledge and/or time to scrutinize the extension's code? I for certain don't have either of it. It would be a nightmare for all who use it (or similar extensions permission-wise) if for some reason the devs turn rogue (e.g. does silently nasty things while you input credentials to login on web pages).
We all who use browser extensions put pretty much faith in the devs to play fair all the time. Let's hope the extension's devs have their security and minds in good shape. Fingers crossed...
Keep this in mind.