From b79503d43bf4033411d956f9ab531157e05c7f48 Mon Sep 17 00:00:00 2001
From: Emil Ernerfeldt <emil.ernerfeldt@gmail.com>
Date: Thu, 9 Nov 2023 11:17:20 +0100
Subject: [PATCH] Fix visual artifact with thin rounded rectangles

---
 crates/egui_demo_lib/src/demo/misc_demo_window.rs | 2 +-
 crates/epaint/src/tessellator.rs                  | 1 +
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/crates/egui_demo_lib/src/demo/misc_demo_window.rs b/crates/egui_demo_lib/src/demo/misc_demo_window.rs
index 195b79e223a..a90465cc19d 100644
--- a/crates/egui_demo_lib/src/demo/misc_demo_window.rs
+++ b/crates/egui_demo_lib/src/demo/misc_demo_window.rs
@@ -371,7 +371,7 @@ impl BoxPainting {
                 ui.painter().rect(
                     rect,
                     self.rounding,
-                    Color32::from_gray(64),
+                    ui.visuals().text_color().gamma_multiply(0.5),
                     Stroke::new(self.stroke_width, Color32::WHITE),
                 );
             }
diff --git a/crates/epaint/src/tessellator.rs b/crates/epaint/src/tessellator.rs
index 49cbd31198f..9771362ba37 100644
--- a/crates/epaint/src/tessellator.rs
+++ b/crates/epaint/src/tessellator.rs
@@ -535,6 +535,7 @@ pub mod path {
             add_circle_quadrant(path, pos2(min.x + r.sw, max.y - r.sw), r.sw, 1.0);
             add_circle_quadrant(path, pos2(min.x + r.nw, min.y + r.nw), r.nw, 2.0);
             add_circle_quadrant(path, pos2(max.x - r.ne, min.y + r.ne), r.ne, 3.0);
+            path.dedup(); // We get duplicates for thin rectangles, producing visual artifats
         }
     }