Did you select the colour scheme (e.g. Ed-Marbles) and click 
Apply
Disabled
Perhaps this the point of your original post?
- The ‘Disabled’ tab in the KColorSchemeEditor is used to edit the color scheme for disabled interface elements in KDE Plasma. This includes elements such as disabled buttons, text input boxes, and other interactive elements that are currently not available for use.
In this tab, you can adjust the colors used for disabled elements, allowing you to customize the appearance of your desktop environment. The ‘Disabled’ tab is one of the three tabs available in the KColorSchemeEditor, along with the ‘Colors’ and ‘Options’ tabs.
- By modifying the colors in the ‘Disabled’ tab, you can create a consistent visual theme throughout your KDE Plasma desktop, making it easier to distinguish between active and inactive elements. This can be particularly useful for users who want to create a customized and accessible desktop environment.
It’s worth noting that the ‘Disabled’ tab is part of the color scheme editing process, which allows you to customize various aspects of the KDE Plasma interface, including the colors used for different elements, such as views, windows, buttons, and tooltips.