Dark and light classic stylesheets.

[MisterMakerNL]

I just tried to copy 1:1 the no-stylesheet theme, but in dark.
It's not perfect but that's QT. :)
Overlay still seems to need some work.
This also ads the icons that are used in default freecad, currently it seems that all theme icons are based on mac-icons.
latest update:

[PaddleStroke]

Interesting. I seem to recall that Qt 6.5 was implementing a dark mode that would make things simpler. Is that taking advantage of that? Are we even using 6.5 btw?

[MisterMakerNL]

@PaddleStroke this would indeed work very well with the 6.5 functionality as I understand Qt 6.5 can detect the dark style of windows and apply a dark theme. But it doesn't have a good dark theme out of the box.
But would be more logical, if it did so maybe they have added one. QT docs aren't really complete most of the time.

[MisterMakerNL]

Updated, already better than currently included stylesheets! So pretty much ready, just going to spend some time fixing up overlay.

[MisterMakerNL]

Btw if people think this is not modern or ugly because of the purple gradients, then we should fix that in no-stylesheet too and also here. This is a black version of no-stylesheet including the not so popular gradients. (although the menu gradients are adjusted to the white text.)

Might be a good idea to adjust the background color to the same gradient as in the menu like this:

I updated the Qsint group which now looks like original.
I also fixed the overlay a bit. worked around the properties panel click true issue by making the background 0.01% transparency.

#13351

[MisterMakerNL]

Added light theme

[MisterMakerNL]

Added overlay fixes:

[MisterMakerNL]

It probably has some tiny bugs, I see one with the treeview having black arrows.
But it's still a lot better than current situation, so this can be reviewed

[chennes]

Are these meant to replace the stylesheets used in the "Dark" and "Light" preference packs?

[MisterMakerNL]

Are these meant to replace the stylesheets used in the "Dark" and "Light" preference packs?

Yes, I'll have a look at making the preference packs too.

[chennes]

@FreeCAD/design-working-group can you please take a look?

[pierreporte]

@chennes Looking at the screenshots, they look pretty decent. The only problem is the background but it has already been discussed: needs #13980 to be fixed before. The themes may not be perfect but they are good enough IMO and they can always be improved.

[MisterMakerNL]

The idea here is also to work from this as a base.
Also move no-stylesheet to dev features.
These 2 styles and the OS-style. I see as the 3 options, in Windows you would have only 2 styles.
If you pick OS-style it would just pick dark or light based on your windows theme.
I think this is how most programs work.

Then OpenThemes and Prodark and Behave-dark, pre-installed as an addon. (as long as they are actively maintained.)
I do not plan to maintain darker/dark/dark modern and such. It's too much work for what it's worth in my opinion. So I'd suggest to remove them unless someone wants to maintain them.
I have a backup as an addon, which will have the latest version as was included in Freecad.

I am btw totally open for improvements like changing the gradient. But I rather do this in separate PR's as this might going to take some time.