diff --git a/modules/backend/models/brandsettings/custom.less b/modules/backend/models/brandsettings/custom.less
index c40754d22..87ce1a83d 100644
--- a/modules/backend/models/brandsettings/custom.less
+++ b/modules/backend/models/brandsettings/custom.less
@@ -62,7 +62,15 @@ body.outer .layout > .layout-row.layout-head {
 @color-fancy-form-tabless-fields-bg: @primary-color-light;
 @color-fancy-master-tabs-bg: @primary-color-dark;
 @color-fancy-form-inactive-tab: mix(black, desaturate(@primary-color-dark, 14.5%), 5%);
-@tab-svg: escape('<svg xmlns="http://www.w3.org/2000/svg" version="1.1" x="0px" y="0px" width="100px" height="110px" viewBox="0 0 100 110" enable-background="new 0 0 100 110" xml:space="preserve"><path d="M0,30C5,30,10,0,20,0c5,0,60,0,65,0c10,0,10,30,15,30"/><path fill="@{color-fancy-form-tabless-fields-bg}" d="M0,70c5,0,10-30,20-30c0,10,0,15,0,15v15"/><path fill="@{color-fancy-form-tabless-fields-bg}" d="M100,70c-5,0-10-30-20-30c0,10,0,15,0,15v15"/><path fill="@{color-fancy-form-inactive-tab}" d="M0,110c5,0,10-30,20-30c0,10,0,15,0,15v15"/><path fill="@{color-fancy-form-inactive-tab}" d="M100,110c-5,0-10-30-20-30c0,10,0,15,0,15v15"/></svg>');
+
+@tab-svg-part1: 'data:image/svg+xml;charset=UTF-8,';
+@tab-svg-part2: escape('<svg xmlns="http://www.w3.org/2000/svg" version="1.1" x="0px" y="0px" width="100px" height="110px" viewBox="0 0 100 110" enable-background="new 0 0 100 110" xml:space="preserve">');
+@tab-svg-part3: escape('<path d="M0,30C5,30,10,0,20,0c5,0,60,0,65,0c10,0,10,30,15,30"/>');
+@tab-svg-part4: escape('<path fill="@{color-fancy-form-tabless-fields-bg}" d="M0,70c5,0,10-30,20-30c0,10,0,15,0,15v15"/>');
+@tab-svg-part5: escape('<path fill="@{color-fancy-form-tabless-fields-bg}" d="M100,70c-5,0-10-30-20-30c0,10,0,15,0,15v15"/>');
+@tab-svg-part6: escape('<path fill="@{color-fancy-form-inactive-tab}" d="M0,110c5,0,10-30,20-30c0,10,0,15,0,15v15"/>');
+@tab-svg-part7: escape('<path fill="@{color-fancy-form-inactive-tab}" d="M100,110c-5,0-10-30-20-30c0,10,0,15,0,15v15"/>');
+@tab-svg-part8: escape('</svg>');
 
 .fancy-layout {
     .control-tabs, &.control-tabs {
@@ -85,7 +93,7 @@ body.outer .layout > .layout-row.layout-head {
                 a > span.title {
                     background-color: @color-fancy-form-inactive-tab;
                     &:before, &:after {
-                        background-image: url(~'data:image/svg+xml;charset=UTF-8,@{tab-svg}');
+                        background-image: url(~'@{tab-svg-part1}@{tab-svg-part2}@{tab-svg-part3}@{tab-svg-part4}@{tab-svg-part5}@{tab-svg-part6}@{tab-svg-part7}@{tab-svg-part8}');
                     }
                 }
                 &.active {