The Game: No One's Space (NOS) is a single-player Retro 2D-Science-Fiction-Shooter with modern physics. It was created as a cross-breed of the classic games Wing Commander I and Star Control II. In NOS, the player experiences a cosmic conflict between four powerful races, taking the role of different heroes. In 54 challenging missions, reaching from manageable duels to large combats, the player controls a variety of vessels and has to go all out to improve his skill and master them all.
I made some adjustments to differentiate the back- and foreground from normal asteroids, by reducing the brightness of the back- and foreground.
new: Brightnessfactor: 0.4
old: Brightnessfactor: 0.5
Thanks for the hint @whilefun