Use the Font property to change the control's font. Use the <font> built-in HTML element to specify a different font for parts of the text in the tooltip. Use the <b>, <i>, <s> or <u> built-in HTML element to change the font's attributes to show portions of text inside the tooltip. Use the ForeColor property to specify the tooltip's foreground color. Use the <bgcolor> built-in HTML element to specify a background color for parts of the text in the tooltip.