Syntax highlight theme on Files tab

[VasilisManol]

Hi,

Is there a way to change the theme used in Files tab for syntax highlighting? It is unreadable on any terminal with light background. The rest of the GUI is rendered nicely on a light terminal. It is just the opened file under Files and only on light background that is very pale and unreadable.

[savchenko]

Created #2308

[extrawurst]

we rather need a way to style the syntax highlighting

[savchenko]

Of course, matter of choice between "text looks fancy at some point in future" and "text is readable now".