ceiling mount shower curtain rod
Is it possible to use a pressure mounted curtain rod inside of the shower stall?  The lower picture (the right side of the shower stall?) looks like the start of the shower stall wall is flat but the top picture (left side of shower stall?) looks slightly curved.  But still I wonder if you move the shower curtain rod below where it curves on the left, then is it flat enough on both sides for the pressure from the curtain rod to hold it in place?