Small & global ideas
Theme contrast feature
“Quick Settings” page ideas
Social & Users feedback:
https://www.reddit.com/r/kde/comments/1l4q6rh/what_do_you_think_about_adding_progressive/
https://www.reddit.com/r/kde/comments/1l5gugx/keep_experimenting_with_the_quick_settings_corner/
If you have more ideas for Plasma concepts, write to me, my goal is to collect as many of them as possible and arrange them in the best possible way, KDE deserves to get a common library of interfaces and its own space for creating concepts!