Hi, thanks for playing. I couldn't recreate the issue you were facing at the level 7. The use direction should match the arrows on the keyboard. Regarding the colour pallete, tbh we did not think about it, but it is a lesson learned.
Thanks for checking that out. It might just be a random bug. I should play the game again so I can beat that level!
I hope it is a random bug, if the same bug happens, let me know