diff --git a/apps/common/forms/resources/less/common.less b/apps/common/forms/resources/less/common.less
index 17545a3e6..d2f259318 100644
--- a/apps/common/forms/resources/less/common.less
+++ b/apps/common/forms/resources/less/common.less
@@ -226,7 +226,7 @@
     background: data-uri('../../../../common/main/resources/img/header/dark-logo_s.svg') no-repeat;
 }
 
-.theme-dark {
+.theme-type-dark {
     .brand-logo {
         background: data-uri('../../../../common/main/resources/img/header/header-logo_s.svg') no-repeat;
     }
@@ -432,7 +432,7 @@
 @icon-width: 20px;
 @icon-height: 20px;
 
-.theme-dark {
+.theme-type-dark {
     @neg-value: -@icon-height;
     --icon-normal-top: @neg-value;
 }
diff --git a/apps/common/main/resources/less/toolbar.less b/apps/common/main/resources/less/toolbar.less
index add21e51a..d29a43791 100644
--- a/apps/common/main/resources/less/toolbar.less
+++ b/apps/common/main/resources/less/toolbar.less
@@ -710,7 +710,7 @@
         .background-ximage-all('toolbar/math.png', 1500px, @commonimage: true);
         opacity: @component-normal-icon-opacity;
 
-        .theme-dark & {
+        .theme-type-dark & {
             -webkit-filter: @img-equition-filter;
             filter: @img-equition-filter;
         }
diff --git a/apps/common/main/resources/less/window.less b/apps/common/main/resources/less/window.less
index c8c05adc9..b28731c8c 100644
--- a/apps/common/main/resources/less/window.less
+++ b/apps/common/main/resources/less/window.less
@@ -18,7 +18,7 @@
     background-color: rgb(0,0,0);
     z-index: @zindex-modal - 1;
 
-    .theme-dark & {
+    .theme-type-dark & {
         opacity: 0.6;
     }
 }