It's monotonous, it's not clear what the next color will be, so you don't have time to react, you can add speed to each subsequent one, starting with a very slow one. Also, not exactly about stealth, but despite the criticism, the game is not bad.
thanks, the color of the scan light is the color of the roun's letter, below there is the team saying the time for the start of the round and the time for the end, thanks for the comment, I did something minimalist similar to those escape lights from prison in the movies that locates the fugitive.