diff --git a/src/styles/custom-components.css b/src/styles/custom-components.css
index 33ad7a98..37147f02 100644
--- a/src/styles/custom-components.css
+++ b/src/styles/custom-components.css
@@ -59,6 +59,17 @@
     color: var(--black-600) !important;
 }
 
+.s-btn-group .s-btn--radio:checked + .s-editor-btn {
+    background: var(--black-500) !important;
+    color: var(--white) !important;
+}
+
+.s-btn-group .s-btn--radio:focus-visible + .s-editor-btn {
+    box-shadow:
+        0 0 0 var(--su-static2) var(--focus-neutral),
+        0 0 0 var(--su-static4) var(--focus-theme);
+}
+
 /*
     NOTE: These focus-visible styles exist to override the Stacks styles for editor buttons.
     Since the editor buttons require the focus rings to be applied outside of the button,