Components have properties. Properties define a certain behavior of the component that it applies to.Some properties (like left, top, width, and height) are only used to reconstruct the designed form and have no meaning for the code generator (as the form is build based upon the Bootstrap rules). Some others can change the apperance of the component, like color, font type, or it's behavior like linking to other forms components, management of master-detail etc.

Properties can be set directly in the property editor, many can also be set in code.