- c->border = wc.border_width = (c->w == sw && c->h == sh) ? wa->border_width : BORDERPX;
- XConfigureWindow(dpy, w, CWBorderWidth, &wc);
- XSetWindowBorder(dpy, w, dc.norm[ColBorder]);
- configure(c); /* propagates border_width, if size doesn't change */