SetScrollingRegion (DECSTBM) sets the top and bottom margins for the scrolling region. The default is the entire screen.
``` CSI <top> ; <bottom> r ```
https://vt100.net/docs/vt510-rm/DECSTBM.html
use setTopBottomMargins instead.
SetScrollingRegion (DECSTBM) sets the top and bottom margins for the scrolling region. The default is the entire screen.