This is a TImage descendant component with additional functionality: when placed on a form, it can change it's appeareance. The form will look the same as the image, with a selected color (or a range of colors) appearing as transparent.
It also provides a possibility to move the form by clicking on the image and dragging, since the title bar of the form is lost.
You have these new properties to change the behaviour of the componet: TransparentColor, Tolerance, AutoRender, MoveForm and SolidControls, and also the Render method (download the component and see the .txt file for full instructions).
Enjoy it!