the style guide defines several color schemes. Can these color schemes be used on all the GUI
elements or only on some specific ones?
E.g. can the red and green colors be used for (toggle) buttons or only the blue/gray color scheme?
The Style Guide is a reference guide for designing the user interface of the URCap.
As a rule of thumb, the colors (and other elements) should generally be used in the same way they are already used in PolyScope.
For i.e. the green and red colors, these are recommended for use in i.e. “Message” fields. Green for success, and red for errors.
Generally, you can say that the URCap should have the same “look and feel” as PolyScope.
In that sense, the user will experience it as one complete UI.
The Style Guide is a help, that specifies the components already used by PolyScope.