Specify the font if you use ImageInfoText to add text to your thumbnails.
Note: ◼If you need to change the font or styling of particular thumbnails, use the OnGetTextEx event ◼This value may be overridden by VCL theming colors. Set EnableTheming to false to prevent this ◼If Style is iemsColumns then InfoTextFont is also used for the header row font (though it can be overriden in the OnGetTextEx event) ◼If ParentFont = True, all fonts will be inherited from the parent control