Thanks a lot for playing the game!
Yeah, I just had the remark about the red and orange below ^^ I didn't see it with my monitor at the time...
Thanks to you, I changed the color to more different ones! I am also implementing a colorblind setting that let you choose your own custom set of colors!
Also, very nice idea regarding the tube design, you are absolutely right! I will definitely take that into consideration for future updates!
Thanks for the valuable feedback!