The Custom Underline feature lets you customize the color, shade, width, and offset of underlines. Custom underlines behave much like type style underlines, but can be customized with more control over the underline attributes.

Custom underline styles work much like style sheets. To create, edit, or delete an underline style, choose Edit > Underline Styles. To apply a custom underline style, choose its name from the Style > Underline Styles submenu.

To apply a custom underline, select the text you want to underline and choose Style > Underline Styles > Custom. In the Underline Attributes dialog box, you can specify the color, shade, width, and offset of the underline.

To remove a custom underline, select the text and then choose Style > Type Style > Remove Custom Underline.