I love Spotify, and find its color scheme generally pleasing. However, I'm horifically color blind and have to really struggle to figure out when shuffle is on while using the mobile app. I'm not quite sure how this could be rectified while maintaining a cohesive aesthetic, but I thought I'd mention it because I assume other people might have this problem.
Hey @HurleySk we're happy to announce this was implemented with the Desktop app update 1.0.57. Our player controls with active states like "Repeat" or "Shuffle" previously only used a change in colour (from Grey to Green) to show when they were active.
We have now added a small dot below the active icon for our users who suffer from colour blindness to show if they are active or not. Thank you for your continued feedback, we're listening!