Unreadable documentation du to contrast issues

[Timothy Armes]

Hi,

I don't know if I'm the only one struggling, but for me the documentation is essentially impossible to read:

I can't see the black text on the very dark grey background.

[Baturalp Gurdin]

Have experienced the same and came here to open an issue about it. It's almost impossible to read docs

[Guy Gascoigne-Piggford]

see #326 (comment) for a workaround.