Currently, the ColorPicker's Cancel button does not close the popup, it only resets the selected colors. It would be beneficial to close the popup as well.

Describe the bug
When using the ColorPicker component in a scenario where you can edit the RGB values of the component by clicking on a NumericTextBox that controls the R, G, or B color channels or changing the NumericTextBox value results in the following error:

To Reproduce

1. Open this project
2. Expand the popup of the ColorPicker
3. Click on a NumericTextBox that controls one of the R, G or B color channels

Expected behavior
No errors should be thrown when using the RGB inputs of the ColorPicker