Hi. Thanks for this nice theme.

After trying it out for a while, I don't understand why so much is being highlighted in yellow.

Here's an example with a random illustrative file from the deno repository:

false, true, null, number literals, TextEncoder, Promise, etc are all highlighted here, due to usages of stimmung-themes-light-highlight-color here:

It seems a bit much, and it's not clear why constants and typenames deserve to be highlighted. I could of course override this, but I'd also like to hear what you think.