Defines classes that customize the grid header - the row that contains headers of all grid columns.
GridControl provides you with two predefined themes - Light and Dark. The Default theme depends on the mobile platform. For iOS applications, the Default theme is Light, for Android - is Dark. To apply another theme to a grid, use the ThemeManager.ThemeName property. Then, you can customize the applied theme (if needed). For more information, see the How to: Customize Themes document.
To apply customization to a grid, call the ThemeManager.RefreshTheme method.