(BROKEN) start on removing desired size

core/src/ui/painter.rs

@@ -10,6 +10,7 @@ use crate::{
 pub struct Painter<'a, 'b> {
     pub(super) state: &'a mut DrawState<'b>,
 
+    pub region_used: UiRegion,
     pub(super) region: UiRegion,
     pub(super) mask: MaskIdx,
     pub(super) textures: Vec<TextureHandle>,