public override Color ForeColor { get; set; }

Public Overrides Property ForeColor As Color

You can use the ForeColor property to change the color of the text within the control to match the text of other controls on your form. You can also use this property to highlight a specific control that contains an invalid value.

To change the background color of the control, use the BackColor property. When setting the ForeColor property of your text control, ensure that the color you choose does not cause the text of the control to disappear. For example, if the ForeColor and BackColor properties are both set to Color.Black, the text within your textbox control will not be visible.