diff --git a/.changeset/clear-adults-pump.md b/.changeset/clear-adults-pump.md
new file mode 100644
index 00000000000..6230c5cec82
--- /dev/null
+++ b/.changeset/clear-adults-pump.md
@@ -0,0 +1,5 @@
+---
+'@clerk/ui': patch
+---
+
+Updates dev mode banner styling
diff --git a/packages/ui/src/elements/Card/CardClerkAndPagesTag.tsx b/packages/ui/src/elements/Card/CardClerkAndPagesTag.tsx
index 47be19c659f..8831d9b13bf 100644
--- a/packages/ui/src/elements/Card/CardClerkAndPagesTag.tsx
+++ b/packages/ui/src/elements/Card/CardClerkAndPagesTag.tsx
@@ -38,7 +38,7 @@ export const CardClerkAndPagesTag = React.memo(
           outerSx,
         ]}
       >
-        {withDevOverlay && <DevModeOverlay gradient={0} />}
+        {withDevOverlay && <DevModeOverlay />}
         <Col
           sx={t => ({
             gap: displayConfig.branded || withFooterPages ? t.space.$2 : 0,
diff --git a/packages/ui/src/elements/DevModeNotice.tsx b/packages/ui/src/elements/DevModeNotice.tsx
index 93ab3c10233..02526324fda 100644
--- a/packages/ui/src/elements/DevModeNotice.tsx
+++ b/packages/ui/src/elements/DevModeNotice.tsx
@@ -3,12 +3,50 @@ import type { ThemableCssProp } from '@/ui/styledSystem';
 import { Box, Text } from '../customizables';
 import { useDevMode } from '../hooks/useDevMode';
 
-type DevModeOverlayProps = {
-  gradient?: number;
+const DEV_MODE_GRID = {
+  width: 420,
+  height: 25,
+  squareSize: 1.5,
+  gap: 2,
+  minOpacity: 0.15,
+  maxOpacity: 0.75,
+  contrast: 2,
+  fadeWidth: 100,
+  fadeHeight: 36,
+  edgeFadeStop: 50,
+  lineHeight: 2,
+} as const;
+
+const cellRandom = (x: number, y: number) => {
+  let h = (x * 374761393 + y * 668265263 + 2246822519) | 0;
+  h = (h ^ (h >>> 13)) * 1274126177;
+  return ((h ^ (h >>> 16)) >>> 0) / 4294967296;
+};
+
+const buildDevModeGridTile = (options: typeof DEV_MODE_GRID) => {
+  const step = options.squareSize + options.gap;
+  const tileWidth = Math.max(1, Math.round(options.width / step)) * step;
+  const tileHeight = options.height - options.lineHeight;
+  let rects = '';
+
+  for (let y = 0; y < tileHeight; y += step) {
+    for (let x = 0; x < tileWidth; x += step) {
+      const opacity =
+        options.minOpacity + (options.maxOpacity - options.minOpacity) * Math.pow(cellRandom(x, y), options.contrast);
+      rects += `<rect x="${x}" y="${y}" width="${options.squareSize}" height="${options.squareSize}" fill="#fff" opacity="${opacity.toFixed(2)}"/>`;
+    }
+  }
+
+  const svg = `<svg xmlns="http://www.w3.org/2000/svg" width="${tileWidth}" height="${tileHeight}">${rects}</svg>`;
+  return `url("data:image/svg+xml,${encodeURIComponent(svg)}")`;
 };
 
-export const DevModeOverlay = (props: DevModeOverlayProps) => {
-  const { gradient = 60 } = props;
+const gridTile = buildDevModeGridTile(DEV_MODE_GRID);
+const gridMask = `radial-gradient(ellipse ${DEV_MODE_GRID.fadeWidth}% ${(DEV_MODE_GRID.fadeHeight / DEV_MODE_GRID.height) * 100}% at 50% 100%, #000 0%, transparent 100%)`;
+const edgeMask = `linear-gradient(to right, transparent, #000 ${DEV_MODE_GRID.edgeFadeStop}%, #000 ${100 - DEV_MODE_GRID.edgeFadeStop}%, transparent)`;
+const lineMask = 'linear-gradient(to right, transparent 2%, #000 50%, transparent 98%)';
+
+export const DevModeOverlay = () => {
   const { showDevModeNotice } = useDevMode();
 
   if (!showDevModeNotice) {
@@ -17,15 +55,60 @@ export const DevModeOverlay = (props: DevModeOverlayProps) => {
 
   return (
     <Box
-      sx={t => ({
+      sx={{
         userSelect: 'none',
         pointerEvents: 'none',
-        inset: 0,
+        insetInline: 0,
+        bottom: 0,
         position: 'absolute',
-        background: `repeating-linear-gradient(-45deg,${t.colors.$warningAlpha100},${t.colors.$warningAlpha100} 6px,${t.colors.$warningAlpha150} 6px,${t.colors.$warningAlpha150} 12px)`,
-        maskImage: `linear-gradient(transparent ${gradient}%, black)`,
-      })}
-    />
+        height: DEV_MODE_GRID.height,
+      }}
+    >
+      <Box
+        sx={{
+          position: 'absolute',
+          inset: 0,
+          maskImage: edgeMask,
+          WebkitMaskImage: edgeMask,
+        }}
+      >
+        <Box
+          sx={{
+            position: 'absolute',
+            inset: 0,
+            maskImage: gridMask,
+            WebkitMaskImage: gridMask,
+          }}
+        >
+          <Box
+            sx={t => ({
+              position: 'absolute',
+              top: 0,
+              insetInline: 0,
+              bottom: DEV_MODE_GRID.lineHeight,
+              backgroundColor: t.colors.$warning500,
+              maskImage: gridTile,
+              maskRepeat: 'repeat-x',
+              maskPosition: 'left bottom',
+              WebkitMaskImage: gridTile,
+              WebkitMaskRepeat: 'repeat-x',
+              WebkitMaskPosition: 'left bottom',
+            })}
+          />
+        </Box>
+      </Box>
+      <Box
+        sx={t => ({
+          position: 'absolute',
+          insetInline: 0,
+          bottom: 0,
+          height: DEV_MODE_GRID.lineHeight,
+          backgroundColor: t.colors.$warning500,
+          maskImage: lineMask,
+          WebkitMaskImage: lineMask,
+        })}
+      />
+    </Box>
   );
 };