Colours are unreadable when used with a light terminal background.

[schinckel]

When running with a light-coloured terminal background, the colours used for syntax highlighting make it impossible to read:

[ynqa]

@schinckel Thanks for your reporting 🌈 I am currently planning a mechanism in #23 that allows users to configure the colors for each item. Therefore I will be closing this, since this issue will be encompassed within #23 (Please feel free to reopen it if there's anything else).