Bug report

When a CheckBox is set to enabled: false, the input is missing the k-disabled class. Thus, the checkbox does not have disabled styles applied.

Reproduction of the problem

1. Open the Dojo - https://dojo.telerik.com/KFntNMfA

The desired rendering of the component - https://github.com/telerik/kendo-themes/blob/e1dbf1a74980bd82718f40085f6a8e21922f1897/tests/checkbox/checkbox-states.html#L44

Current behavior

The first checkbox is enabled and the second is disabled, but they appear the same.

Expected/desired behavior

The input should have the k-disabled class when the checkbox is disabled

Workaround

 <style>
        .k-checkbox:disabled{
          opacity: 0.6
        }
      </style>

Dojo - https://dojo.telerik.com/ztwIGjBO

Environment

• Kendo UI version: 2025.3.1002
• Browser: [all ]