1) How can I set minimized apps' names on taskbar NOT to be gray? (ie they are always black)
2) How can I make taskbar not transparent in default theme? But other way than turning all desktops effects off.
A1/Askubuntu: Minimize windows without them going black and white
If you only want to change the text color: KDE system settings > Workspace Appearance > Desktop Theme > Details > Color Scheme
A2/Askubuntu: How to change color/transparency of all desktop panels?