Description
Is your feature request related to a problem? Please describe.
Please support the ability to change the theme of the syntax highlighting.
Describe the solution you'd like
I believe gitui uses syntect for syntax highlighting. syntect uses tmTheme files to set it's Theme (https://github.com/trishume/syntect/blob/master/src/highlighting/theme.rs). If gitui could accept a tmTheme file, it may be able to be passed to syntect to set the theme.
Describe alternatives you've considered
I've created a theme.ron, and while this is nice, it does not affect the syntax highlighting.
Additional context
bat (https://github.com/sharkdp/bat) uses tmTheme files to set it's theme. It does have a particularly interesting on that reuses your terminal colors for the syntax highlighting (https://github.com/sharkdp/bat/blob/master/assets/themes/ansi.tmTheme). Although I did have to modify it slightly to fit my needs.
Thank you for your consideration!