Batoto Night Mode

This extension works by inverting the colors of the reader frame from white to dark grey. In that, it works perfectly… but, only if you're using keyboard navigation (left and right to change pages) or click the drop-down menus. If you click pages <i>directly</i>, the reader frame reverts to its bright white coloration. So, aside from that, I'd say this extension works pretty well! It's far more reliable and consistent than manually inverting the colors via JavaScript command, too.

Don't work anymore, can't read on Batoto without my eyes bleeding now

It doesn't appear to be functioning anymore.

Does its job. :)