How to alter colors in Interactive staging/focused pane mode ?

I understand there is no support for a full on pager once the pane is in focus and navigable with visual/select hunk modes, but the text is still colored in certain ways:

- Green for add
- Red for remove
- Cyan for frag
- Normal bold for meta.... etc

There also is no configuration as of now to change it AFAIK but is it possible to obtain pointers as to where that coloring is taking place in the code if it actually happens in LG ?