ColorDialog on higher dpi has some small problems.
1. Size of dialog is larger so there is large gap in right and bottom part.
2. Selected radio button black circle is not in center of larger circle.
Hello, Rene,We already have a known issue about the check mark primitive on HDPI. You can track its progress, subscribe for status changes and add your comments on the following link: https://feedback.telerik.com/winforms/1372940-fix-radradiobutton-checkmark-is-not-rendered-properly-at-dpi-scaling-150Feel free to use the suggested solution.As to the RadColorDialog, I confirm that it is not sized properly on higher DPI than 100%. The issue is reproducible in the Demo application:
I have logged it in our feedback portal by making this thread public. You can track its progress, subscribe for status changes and add your comments on the following link - feedback item.
I have also updated your Telerik points.
Currently, the possible solution that I can suggest is to disable the application scaling: https://docs.telerik.com/devtools/winforms/telerik-presentation-framework/dpi-support
I hope this information helps. If you need any further assistance please don't hesitate to contact me.
Dess | Tech Support Engineer, Sr.