Contrast between foreground and background colors on some elements is hard to read

First of all thanks for providing this package, it's great!

I think there are some discrepancies with the 'new' version of insomnia, that changed it's UI, when compared to the UI of the screenshots, e.g. the request verbs in the side bare don't have consistent coloring:

When using some of the builtin tags in insomnia such as the timestamp, the color don't contras well and are kind of hard to read.

## Mocha theme

## Default theme

Anf finally the invite button also suffers from some contrast issues:

Start by reproducing the reported contrast problems in Insomnia using the attached screenshots as visual references, checking the request verbs, built-in timestamp tags, and invite button in both Mocha and the default theme. Trace those UI elements to their theme or styling definitions. Done means the affected foreground and background combinations are consistently readable in both themes.

Written by the indexing model from the issue text.