Style tweak, dimming highlight color

[davidlatwe]

What's changed

• Comment out QHeaderView::section's color attribute so one could customize it
• Dimming selection highlight color so the icons could pop-up, having more contrast

Before

After

Custom header section text color

Motivation

Although I did think about overriding styles from the config, but then I thought it could become a bit harder to develop GUI in style that everyone could adopt since what other sees would be different from mine. So I decide to push the change I need and have a open discuss to see if everyone feels okay with it.

It's not much but I think it could improve the overall color contrast for seeing icons and other things that are a bit more important than selections. Bright icon friendly style. ☺️

[mottosso]

Nice one :)

[BigRoy]

Looking good! At first it did give me the feeling that somehow it was "disabled" because of the dimmed color but likely it just needs some getting used to.

What does it look like when a row is disabled? Or the widget is disabled?

I always wondered whether we should make the Alternating Row color slightly subtler and easier to the eye? Any thoughts on that?

[davidlatwe]

What does it look like when a row is disabled? Or the widget is disabled?

Good question, here's my test, disabling row and widget 👇

It seems disabling widgets doesn't affect the highlight color, and the same result before this PR.

I always wondered whether we should make the Alternating Row color slightly subtler and easier to the eye?

I have thought about that, too. And I vote yes on that. 👍

[davidlatwe]

A quick test on dimming alternative row color (alternate-background-color)

From #3A3939 to #2D2C2C.

[mkolar]

I like it. also with the dimming of the alternating colours. It's a bit softer which is always nice.

[davidlatwe]

Can we merge this ? 😃