Answered: Definition of a "color filter"

What is the definition of a “color filter” from <R7a>? I thought that it would be something like a piece of tinted cellophane that alters how the light sensor detects colors. However, in this thread, it seems like it could also include colored markers (like stickers) placed on parts of the robot that the light sensor could detect.

Which idea is correct? (or are both correct?)



Both ideas are correct.

Ok, thanks!