Link customization

Customize the appearance of your Link modal to match your brand.

Button styling

FieldDescription
Background colorHex color for the primary button background (e.g. 0055FF). Applies to all primary action buttons in Link — Continue, Submit, Connect, etc.
Text colorHex color for the primary button text (e.g. FFFFFF). Applies to the same buttons as background color.

Font

FieldDescription
FontWeb-safe font applied globally to all text in the Link modal. Options: Arial, Arial Black, Courier New, Georgia, Helvetica, Lucida Sans, Palatino, Tahoma, Times New Roman, Trebuchet MS, Verdana, Lucida Console, Comic Sans MS, Roboto, System UI. Select “Default (Inter)” to use Merge’s default font.

Border radius

All border radius fields accept valid CSS border-radius values (e.g. 12px, 0.5em, 50%, 0). Units are required for non-zero values.

FieldDescription
ButtonBorder radius for primary action buttons — Continue, Submit, Connect, and similar call-to-action buttons throughout the Link flow.
Selection buttonBorder radius for authentication method selection buttons — the cards/buttons shown when a connector supports multiple auth methods (e.g. choosing between OAuth and API key). Only visible when a connector has more than one auth option.
ModalBorder radius for the Link modal container itself — the outer rounded corners of the entire Link popup.