diff --git a/test/playwright/SharedRendererTests.ts b/test/playwright/SharedRendererTests.ts
index 76c5051b..eaa54d12 100644
--- a/test/playwright/SharedRendererTests.ts
+++ b/test/playwright/SharedRendererTests.ts
@@ -1092,6 +1092,30 @@ export function injectSharedRendererTests(ctx: ISharedRendererTestContext): void
   });
 
   test.describe('regression tests', () => {
+    test('#4736: inactive selection background should replace regular cell background color', async () => {
+      const theme: ITheme = {
+        selectionBackground: '#FF0000',
+        selectionInactiveBackground: '#0000FF'
+      };
+      await ctx.value.page.evaluate(`window.term.options.theme = ${JSON.stringify(theme)};`);
+      await ctx.value.proxy.writeln(' ');
+      await ctx.value.proxy.writeln(' O ');
+      await ctx.value.proxy.writeln(' ');
+      await ctx.value.proxy.focus();
+      await ctx.value.proxy.selectAll();
+      await pollFor(ctx.value.page, () => getCellColor(ctx.value, 1, 1), [255, 0, 0, 255]);
+      await pollFor(ctx.value.page, () => getCellColor(ctx.value, 2, 1), [255, 0, 0, 255]);
+      await pollFor(ctx.value.page, () => getCellColor(ctx.value, 2, 2), [255, 0, 0, 255]);
+      await pollFor(ctx.value.page, () => getCellColor(ctx.value, 2, 3), [255, 0, 0, 255]);
+      await pollFor(ctx.value.page, () => getCellColor(ctx.value, 3, 3), [255, 0, 0, 255]);
+      await ctx.value.proxy.blur();
+      frameDetails = undefined;
+      await pollFor(ctx.value.page, () => getCellColor(ctx.value, 1, 1), [0, 0, 255, 255]);
+      await pollFor(ctx.value.page, () => getCellColor(ctx.value, 2, 1), [0, 0, 255, 255]);
+      await pollFor(ctx.value.page, () => getCellColor(ctx.value, 2, 2), [0, 0, 255, 255]);
+      await pollFor(ctx.value.page, () => getCellColor(ctx.value, 2, 3), [0, 0, 255, 255]);
+      await pollFor(ctx.value.page, () => getCellColor(ctx.value, 3, 3), [0, 0, 255, 255]);
+    });
     test('#4758: multiple invisible text characters without SGR change should not be rendered', async () => {
       // Regression test: #4758 when multiple invisible characters are used
       await ctx.value.proxy.writeln(`■\x1b[8m■■`);