diff --git a/Themes/BasicBackground/BasicBackground.css b/Themes/BasicBackground/BasicBackground.css
index 607eb2a6c5..1e1d239ff1 100644
--- a/Themes/BasicBackground/BasicBackground.css
+++ b/Themes/BasicBackground/BasicBackground.css
@@ -173,6 +173,7 @@
 	--channeltextarea-background: rgba(var(--transparencycolor_v), .3);
 	
 	--input-background: rgba(var(--transparencycolor_v), .1);
+	--input-border: rgba(var(--transparencycolor_v), .1);
 	
 	--elevation-low: 0 1px 5px 0 rgba(var(--transparencycolor_v), .3);
 	--elevation-high: 0 2px 10px 0 rgba(var(--transparencycolor_v), .3);