[Feature Request] Improvements for UI themes

[astares]

The new DarkBlue theme does not have much contrast. It is unfortunately hard to distinguish the overlapping windows on the background due to this

It is also missing/not (yet) reflected in the Welcome Window:

IMHO the DarkBlue theme looks terrible as a welcome theme.

Why cant we deliver Pharo with the dark and white theme by default only as usual and as most technologies do it and then have custom themes additional?
We already have loadable icon packs icon the settings - so we could provide loadable themes (for those who want it/really require it) too:

This way we could add other themes easily as well:

https://github.com/estebanlm/themes

• The font color of a hovered menu entry is black and has bad contrast.

• Non active windows are difficult to distinguish from the background. (Maybe change the default background color to something less darkish?)
• The color of inactive windows is very similar (or equal?) to the color of text boxes

[astares]

A small step is done in pharo-spec/NewTools-WelcomeBrowser#25 fixing pharo-spec/NewTools-WelcomeBrowser#24

[guillep]

Thanks for the issue!

I'll edit the description so that we add a list of concrete improvements. What do you think?
Then we can decide to change back to the black theme or not, but at least the blue one will get better ^^