How to make offset line thicker

Question how do i make the inner line thicker in lightburn made a boolean offset bit i want the inner line engrave thicker like the picture attached
Screenshot_20230828_195103_Samsung Internet

This may be relevant:

The offset command when used of a FILL layer will produce a solid shape. In this case, a ring. By adjusting the “offset distance”, you can make the filled shape wider or more narrow. Play around with the settings to see the different effects. The preview button is my most used button in LB>