add: if (WFLAGP(wwin, no_border)) { XSetWindowBorderWidth(dpy, wwin->frame->core->window, 0); }
context: wSelectWindow(WWindow *wwin, Bool flag){    WScreen *scr = wwin->screen_ptr;        if (flag) {	wwin->flags.selected = 1;	XSetWindowBorder(dpy, wwin->frame->core->window, scr->white_pixel);	if (!scr->selected_windows)	    scr->selected_windows = WMCreateBag(4);	WMPutInBag(scr->selected_windows, wwin);    } else {	wwin->flags.selected = 0;	XSetWindowBorder(dpy, wwin->frame->core->window, 			 scr->frame_border_pixel);	if (scr->selected_windows) {	    WMRemoveFromBag(scr->selected_windows, wwin);	}    }}