This is mostly a User Interface/usability thing.
With the introduction of gameplay in the Ice Planet playfield, I have some trouble seeing if my modules are activated, and how far along they are in cycling.
Prime reason for this is the lack of contrast between the bright/light Ice Planet playfield, the white circle filling in as the module cycles, going around, and the green glow for an activated module (or lack thereof).
A possible solution might be to have either a dark outline surrounding the module icons, or to have the option of the panel/area where the module icons are in the HUD to have a darker background, in both cases increasing contrast and visibility for the activity of the icons.
(And if such an option is already in the game, please point me at it, as I’ve missed it thus far )