Update

Author: svekars

_static/css/custom.css

@@ -102,10 +102,10 @@
 }
 
 .gsc-search-button-v2 {
-   border-color: #ee4c2c;
+   border: none;
 }
 
-.gsc-search-button:active,
-.gsc-search-button:hover {
-   border-color: #ee4c2c;
+.gsc-search-button-v2:active,
+.gsc-search-button-v2:hover {
+   border: none;
 }