diff --git a/packages/core/src/themes/css/default.css b/packages/core/src/themes/css/default.css
index 63c88a05f8..13eba19256 100644
--- a/packages/core/src/themes/css/default.css
+++ b/packages/core/src/themes/css/default.css
@@ -4,29 +4,29 @@
 :root {
   --primary: #3880ff;
   --primary-contrast: #ffffff;
-  --secondary: #0cd1e8;
+  --secondary: #0CD1E8;
   --secondary-contrast: #ffffff;
-  --tertiary: #7044ff;
+  --tertiary: #7044FF;
   --tertiary-contrast: #ffffff;
-  --success: #10dc60;
+  --success: #10DC60;
   --success-contrast: #ffffff;
-  --warning: #ffce00;
+  --warning: #FFCE00;
   --warning-contrast: #ffffff;
   --danger: #f04141;
   --danger-contrast: #ffffff;
   --light: #f4f5f8;
   --light-contrast: #000000;
-  --medium: #898b93;
+  --medium: #898B93;
   --medium-contrast: #000000;
   --dark: #222428;
-  --dark-contrast: #f4f5f8;
-  --content-color: #222428;
-  --content-sub-color: #222428;
-  --content-background: #eeeeee;
-  --content-sub-background: #eeeeee;
-  --toolbar-background: #eeeeee;
-  --tabbar-background: #eeeeee;
-  --item-background: #eeeeee;
-  --item-sub-background: #eeeeee;
-  --border-color: #222428;
+  --dark-contrast: #ffffff;
+  --content-color: #000000;
+  --content-sub-color: #898b93;
+  --content-background: #ffffff;
+  --content-sub-background: #f4f5f8;
+  --toolbar-background: #f4f5f8;
+  --tabbar-background: #f4f5f8;
+  --item-background: #fffff;
+  --item-sub-background: #898b93;
+  --border-color: #c4c6ca;
 }
\ No newline at end of file