store size in tex instead of bot_right

src/core/position/scroll.rs

@@ -20,10 +20,12 @@ impl Widget for Scroll {
             .to_abs(output_len);
         self.container_len = container_len.to_abs(output_len);
         self.content_len = content_len;
+
         if self.snap_end {
             self.amt = self.content_len - self.container_len;
         }
         self.update_amt();
+
         let mut region = UiRegion::FULL.offset(Vec2::from_axis(self.axis, -self.amt, 0.0));
         region.axis_mut(self.axis).end = region.axis(self.axis).start.offset(self.content_len);
         painter.widget_within(&self.inner, region);