Better default Material You Plasma color scheme

[luisbocanegra]

Is your feature request related to a problem? Please describe.
As of version v1.5.1 the default Plasma color scheme uses some colors that I decided after some time of experimenting and trying to match Material 3 (You) guidelines but not thinking much about it, also because those guidelines were on a very early state.

Describe the solution you'd like
I'm making this Issue so people can help proposing/making changes to the default color scheme what we need is:

• A relationship between every Plasma color scheme element, you can read the KDE Human Interface Guidelines > Style > Color and KDE Human Interface Guidelines > Components to M3 color roles or tokens that better match components M3 components

• [x] An illustrated figma like, or at least images detailing what every Plasma color scheme value corresponds to which Plasma/QWidget component, I don't know if such a thing exists yet, probably does. overkill

Some probably useful links
https://docs.kde.org/trunk5/en/plasma-workspace/kcontrol/colors/index.html
https://develop.kde.org/docs/extend/plasma/theme/theme-details/#colors

https://github.com/material-foundation/material-theme-builder
https://github.com/material-components/material-web#readme
https://community.kde.org/Get_Involved/design#Current_Projects
https://www.figma.com/@materialdesign

Describe alternatives you've considered
None

Additional context
None

[luisbocanegra]

Which looks better? First is current

[luisbocanegra]

here's the light mode of the third one

[ShatteredSkies]

looks good enough.
the problem now is the dark text on dark background.. is that a KDE issue?

[luisbocanegra]

For the selection (accent colored) areas? That's a KDE issue changing the text color when they are inactive even when ChangeSelectionColor=false is set in the color scheme file, I was trying to change it but seems hardcoded, reverting that restores the current bahavior:

[luisbocanegra]

Should inactive windows have some sort of color change or effect applied (e.g. darkening/desaturation)?

[ShatteredSkies]

i personally don't like inactive color, but i think it would be nice to have it as an option.