Thank you for the feedback! It means a lot for you to take the time to critique us and help us grow. I am a little more proud of the settings button than I realistically should be so I'm glad to see someone besides me likes it too. Fullscreening interrupts the music due to an oversight in a hotfix that was not spotted until now so thank you for pointing that out.
We do want to give the player a little more agency and a little less punishment in future updates as we feel the game submitted is more of a "Challenge Mode" than anything. Rerolling doesn't end your turn to give the player as much time to process what is happening as they like, although an Auto Mode possibly built into Fast Mode will be a good thing to consider. Also yes black dice turn their opposing die white for the round. We were quickly made aware that our in-game explanations were a tad unclear, so the description has a more detailed guide to the mechanics in the meantime.
We're glad you enjoyed in spite of any confusion, and we hope it didn't impact your experience too much.