BorderPatrol provides a painless way to resize shapes in After Effects while maintaining stroke widths and rounded corners. All you need to do is adjust the shape layer’s scale property and shapes will resize relative to the layer’s anchor point. BorderPatrol works with both Parametric and Bezier Path shapes.
Repositioning the anchor point

Shapes resize relative to the shape layer’s anchor point giving you the flexibility of repositioning or animating the anchor point at any time. “Leave Anchor” will maintain stroke widths and rounded corners without repositioning the anchor point.