Hint / Solution:
There are 4 colors associated with each symbol.
The remaining 4 colors are just distractions.
There is no concept of a color overriding another color, all colors are equal. 4 colors are valid, the other 4 are just distractions to mislead you.
There is no concept of door frame overriding door panel. The door is simply saying, there are 2 colors to help you guess what's the object behind the door.