There appears to be a peculiar scaling issue when the RadColorBox is used in a dpi aware app running at scales greater than 100. This can be demonstrated by dropping a RadColorBox on a form in a dpi aware app and then running the app at 150%. Multiple clicks on the colorbox will show the problem. The first click the dialog is at the correct size for that scale. Close the dialog and open it again and now the dialog has shrunk to what is probably 100 scale. And now with each subsequent opening of the color box dialog the size alternates between large and small. Weird, right?