diff --git a/src/css/ext6-pmx.css b/src/css/ext6-pmx.css
index 64b815f..9ff596b 100644
--- a/src/css/ext6-pmx.css
+++ b/src/css/ext6-pmx.css
@@ -66,6 +66,9 @@
 .x-mask-msg-text {
     text-align: center;
 }
+.x-window-header-default-top .x-mask {
+    background-color: #f5f5f5B4; /* ~ 0.7 opacity */
+}
 
 .proxmox-disabled-row, .proxmox-disabled-row td {
     /*color: #a0a0a0;*/
diff --git a/src/proxmox-dark/scss/extjs/_window.scss b/src/proxmox-dark/scss/extjs/_window.scss
index 0fe188d..82b0ded 100644
--- a/src/proxmox-dark/scss/extjs/_window.scss
+++ b/src/proxmox-dark/scss/extjs/_window.scss
@@ -12,6 +12,12 @@
   // make the color transparent so the border doesn't appear visibly,
   // like in crisp, but keep to keep the layout intact
   border-color: transparent;
+
+  // relevant for (disabled) elements that are rendered directly on the header bar like tools
+  // As otherwise, a too light mask is used, which then makes the element stand out in an odd way
+  .x-mask {
+    background-color: rgba($background-darker, 0.7);
+  }
 }
 
 .x-window-header-title-default {