Fix rounding

crates/epaint/src/tessellator.rs

@@ -1277,6 +1277,11 @@ impl Tessellator {
         ((point * self.pixels_per_point - 0.5).round() + 0.5) / self.pixels_per_point
     }
 
+    #[inline(always)]
+    pub fn round_pos_to_pixel(&self, pos: Pos2) -> Pos2 {
+        pos2(self.round_to_pixel(pos.x), self.round_to_pixel(pos.y))
+    }
+
     #[inline(always)]
     pub fn round_pos_to_pixel_center(&self, pos: Pos2) -> Pos2 {
         pos2(
@@ -1707,8 +1712,8 @@ impl Tessellator {
                 // We can fix that by rounding the rectangle corners to pixel centers.
                 // TODO(#5164): maybe do this for all shapes and stroke sizes
                 Rect {
-                    min: self.round_pos_to_pixel_center(rect.min),
-                    max: self.round_pos_to_pixel_center(rect.max),
+                    min: self.round_pos_to_pixel(rect.min),
+                    max: self.round_pos_to_pixel(rect.max),
                 }
             } else {
                 rect