Enable dark mode breaks syntax highlighting

[anhar]

If you enable dark mode on the latest Knuff version or in my case the build from pull #86 syntax highlighting will not work for characters like: , { } : ". See images below:

By highlighting all the text you can still see those characters:

Changing back to light mode makes syntax highlighting work again:

[yspreen]

This is in the latest release too

[dhipin]

When is the latest release?

[fjcaetano]

As a workaround, enabling light mode just for Knuff solves it:

$ defaults write com.madebybowtie.Knuff-OSX NSRequiresAquaSystemAppearance -bool yes