Hello,

The height of the caption of the UltraDockManagerPane depends on the size of the text and the images inside it as it is designed to fit all of them. So to control its height you have to change either the size of the images or the size of the text inside. To do that you could use code like:

               ultraDockManager1.ImageSizeCaption = new Size(30, 30);

or

               ultraDockManager1.DefaultPaneSettings.CaptionAppearance.FontData.SizeInPoints = 10;

Please let me know if you have any additional questions.