diff --git a/ghost/admin/app/styles/app-dark.css b/ghost/admin/app/styles/app-dark.css
index e359d0b18d..ee84c8c095 100644
--- a/ghost/admin/app/styles/app-dark.css
+++ b/ghost/admin/app/styles/app-dark.css
@@ -1374,4 +1374,29 @@ Onboarding checklist */
 
 .gh-onboarding-item--next {
     background: #1c1e21;
-}
\ No newline at end of file
+}
+
+/* ---------------------------------
+Onboarding checklist: Share publication modal */
+
+.share-card-container {
+    border: 1px solid #394047;
+}
+
+.copy-publication-link {
+    background: #394047;
+    border: none;
+}
+
+.copy-publication-link:hover {
+    border: none;
+    opacity: .8;
+}
+
+.share-links li a { 
+    border: 1px solid #394047;
+}
+
+.share-links li a:hover {
+    background: #394047;
+}