view mode improvements: colors by file type

[Stiltzkin]

suggestion:
"define colors by file type" but only for the active view mode.

for example:

• highlight certain extensions

• highlight folders with subfolders

• highlight images with certain resolutions

reason:
most of the times i dont want to have "define colors by file type" active because it slows down everything significally (mostly content plugins).
so i think it would be practical to have this feature only for certain view modes.

[petermad]

Something like cm_ColorFilterX commands that could be turned on and off (0|1|2) in the "Auto-run commands" fiels in a view mode.

Support+++ for that idea.