Re: Object backcolor problem
You would use a single event handler for the MouseDoubleClick event of all Labels. You can do that by selecting them all in the designer, opening the Properties window, clicking the Events button and then double-clicking the desired event. When the event handler is executed, use the 'sender' parameter to get a reference to the label that was double-clicked.
In the event handler, call ShowDialog on your second form and then test its result. You could use Yes for Save to change to one colour and No for Remove to change to the other colour. In your second form, simply set the DialogResult property of the two Buttons to those values and then, when the user clicks one, the form will close and ShowDialog will return that value.