Okay, deleted my last comment cuz I thought I missed something. But no. Error in both Android and windows. Fade black. Posting screenshot. I don't know Jack about Python ....barely learning HTML and css lol. I know, not the same things, I'm just saying lol.
Edit: so I took a wild, educated guess and switched fade and black around in the windows version...fixed...ik it's a super small thing...but not gonna lie, I'm proud of my self lmao.