From Lazarus wiki
ATLinkLabel is a component: label which shows an URL,
- it's hilited with a color on mouseover
- it opens browser on click.
It is class TATLabelLink. Properties:
- Link: string: it is URL
- ColorLinkNormal: TColor: color of label when passive
- ColorLinkMouseover: TColor: color of label on mouseover
MPL 2.0 or LGPL.
Homepage at github: https://github.com/Alexey-T/ATFlatControls