Megatest

			    ;; #:size "50x50"
			    #:expand "YES"
			    #:scrollbar "YES"
			    #:posx "0.5"
			    #:posy "0.5"
			    #:button-cb (lambda (obj btn pressed x y status)
					  (print "obj: " obj ", pressed " pressed ", status " status)
					  (print "canvas-origin: " (canvas-origin the-cnv))
					  (let ((tests-info     (hash-table-ref tests-draw-state  'tests-info))
						(selected-tests (hash-table-ref tests-draw-state  'selected-tests)))
					    ;; (print "\tx\ty\tllx\tlly\turx\tury")
					    (for-each (lambda (test-name)
							(let* ((rec-coords (hash-table-ref tests-info test-name))
							       (llx        (list-ref rec-coords 0))
							       (urx        (list-ref rec-coords 1))