Tue, 27 Nov 2018 23:20:58 +0100 wenzelm adjusted to Isabelle DejaVu fonts (see also 8bd8750a2f9b, b3c665940d62);
(0) -30000 -10000 -3000 -1000 -300 -100 -30 -10 -1 +1 +10 +30 +100 +300 +1000 +3000 +10000 tip