diff --git a/snappymail/v/0.0.0/themes/NextcloudV25+/styles.css b/snappymail/v/0.0.0/themes/NextcloudV25+/styles.css
index 127ce8584..df6c79a11 100644
--- a/snappymail/v/0.0.0/themes/NextcloudV25+/styles.css
+++ b/snappymail/v/0.0.0/themes/NextcloudV25+/styles.css
@@ -11,6 +11,9 @@
 /* #region theme */
 
 :root {
+    --border-color: var(--nc-color-border);
+    --dialog-border-clr: var(--nc-color-border);
+
     --nc-vs-selected-bg: var(--vs-selected-bg, var(--nc-color-background-dark));
     --nc-vs-selected-color: var(--vs-selected-color, var(--nc-color-main-text));
     --nc-vs-border-radius: var(--vs-border-radius, var(--nc-border-radius-large));
@@ -259,6 +262,10 @@
 
 /* #region horizontal rule */
 
+:root {
+    --hr-color: var(--nc-color-border-dark);
+}
+
 #rl-app hr {
     border-color: var(--nc-color-border-dark);
 }