Update styling-and-themes/custom-theme.md

Co-authored-by: Yordan <[email protected]>

Author: dimodi

styling-and-themes/custom-theme.md

@@ -31,7 +31,7 @@ The ThemeBuilder allows [different customization capabilities, depending on the
 
 ## Setting Theme Variables
 
-Each theme defines the same collection of variables, but with different values. For example, here are the <a href="https://www.telerik.com/design-system/docs/themes/kendo-themes/default/theme-variables/" target="_blank">Default theme variables</a>. It is possible to override the theme variable values outside the theme CSS file. In this way you can customize the appearance of the Telerik Blazor components without the need to create and maintain a full custom theme.
+Each theme defines the same collection of variables, but with different values. For example, here are the <a href="https://www.telerik.com/design-system/docs/themes/kendo-themes/default/theme-variables/" target="_blank">Default theme variables</a>. You can override the theme variable values outside the theme CSS file. In this way, you can customize the appearance of the Telerik Blazor components without the need to create and maintain a full custom theme.
 
 This approach is supported starting from theme version `8.0.0` and Telerik UI for Blazor version `6.0.0`. Upgrading the Blazor components does not require any additional steps with regard to the CSS code, unless there are breaking changes in the CSS variable names.