From 267c9aabe1c572f683ec6da0ee11cd943a1798d9 Mon Sep 17 00:00:00 2001
From: "mr. m" <91018726+mr-cheffy@users.noreply.github.com>
Date: Fri, 11 Sep 2026 09:37:47 +0200
Subject: [PATCH] gh-15353: Prevent popups from being too rounded on linux
 (gh-15354)

---
 src/zen/common/styles/zen-panel-ui.css | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/zen/common/styles/zen-panel-ui.css b/src/zen/common/styles/zen-panel-ui.css
index e3c92bd85..d9775692c 100644
--- a/src/zen/common/styles/zen-panel-ui.css
+++ b/src/zen/common/styles/zen-panel-ui.css
@@ -30,6 +30,13 @@ panel[type="arrow"]:not(#feature-callout) {
     }
   }
 
+  @media (-moz-platform: linux) or ((-moz-platform: windows) and (not (-moz-windows-mica-popups))) {
+    &::part(content) {
+      corner-shape: round; 
+      border-radius: calc(var(--panel-border-radius) / var(--zen-squircle-value));
+    }
+  }
+
   @media (-moz-platform: macos) {
     &:is([nonnative], :not([type="arrow"])) {
       appearance: auto !important;