Custom Designer Property Categories

I am trying to categorize custom designer properties.

I followed simple coding instructions from this video: www.youtube.com/watch

However, none of the categories are showing in my designer on the backend.

Here is the code for some of the properties I am trying to categorize:

        [Category("Setup")]
        public int SetupId get; set;
        [Category("Color")]
        public string ColorDesc get; set;
        [Category("Color")]
        public string ColorLink get; set;
        [Category("Shapes & Sizes")]
        public string ShapeDesc get; set;
        [Category("Shapes & Sizes")]
        public string ShapeLink get; set;

 Thanks in advance.

Hello Terence,

We have answered you in the support ticket that you had opened for this case. 

Thank you for your cooperation.

Regards,
Angel Moret
Telerik