You can try GNU APL 1.3 with my online compiled-to-javascript version (I used emscripten for compiling it): http://baruchel.hd.free.fr/apps/apl/i/ http://baruch

You can try GNU APL 1.3 with my online compiled-to-javascript version (I used emscripten for compiling it): http://baruchel.hd.free.fr/apps/apl/i/ http://baruchel.hd.free.fr/apps/apl/i/ The page is customizable with 5 colours: try http://baruchel.hd.free.fr/apps/apl/i/#c=0000001E2C3363A209F3F3F3D7D5D5 http://baruchel.hd.free.fr/apps/apl/i/#c=0000001E2C3363A209F... (you will probably need to force reloading the page) or http://baruchel.hd.free.fr/apps/apl/i/#c=4E525D687389ECEAEDF5AB0EB5B8BF http://baruchel.hd.free.fr/apps/apl/i/#c=4E525D687389ECEAEDF... (choice of 5 colors from Adobe Kuler website).