Fig. 2.

(A) Independence of nearby clone areas. A localized region of growth (marked by the red star) at the center of the left clone (light blue) leads to an increase in the area of that clone, but it leaves the area of the adjacent clone (dark blue) unchanged even while distorting its shape. (B) Longitudinal soft mode. Sinusoidal growth (color scale gives $\tilde{G}$) leads to a deformation field $\mathbf{w}$ (arrows) that exactly compensates for the growth, leaving the density unchanged.