Change selected/copied/cut files highlight

[flashrunnerGH]

I have read the docs but haven't find any option to change the highlight of selected files (the box before the file name when you press space). Is it possible?

[joelim-work]

The colors are cut/copied/selected files are currently hardcoded:

lf/ui.go

Lines 351 to 354 in d8b7df8

	// These colors are not currently customizeable
	const SelectionColor = tcell.ColorPurple
	const YankColor = tcell.ColorOlive
	const CutColor = tcell.ColorMaroon

I think this is a reasonable feature to implement, given that there is already support for customizing the color of other things like borderfmt and numberfmt.

I have submitted a PR #1540 for this.