[Size] box
The size of the font is specified with the value from 1 to 7. The default value is three. And if '+' or '-' is given to the head of the value, you can make it relative size specification.
[Color] box
The color of the font is specified by RGB value, which has six figures of the hexadecimal number starting with #. When the button is clicked, the color dialog is displayed. You will also see the list of the colors you have used displayed in the drop down list.
[Face] box
The style of the font is specified.
When the fonts of Windows is selected in the [Face] box, they are not displayed in platforms other than Windows.