Jakub Tarnawski

Yes, probably the time limit should be a property of a problem, not of a testcase. Then also newly added testcases would inherit the correct TL for the problem, instead...

Maybe the icon could picture a rating graph going sharply up. Or be similar to the CF logo, but going up to the right (rather than up-down).

In which judge systems can you download systests? Not CodeForces and not CodeChef, for sure.

I don't think we need buttons. The user can easily figure out what to do once they're in the File menu.

For what it's worth, Hightail is pretty good at handling large inputs (which are just pasted in).

This might be useful https://sites.google.com/site/indy256/algo/force_based_graph_drawing

Also we could draw other useful things: sets of (time) segments, points on the plane, etc.

What do you mean by support/"make it work on"? Hightail is agnostic of the IDE.

Ok, that's great. Of course, you will need to implement the support. Just send me a pull request when you implement the parsers. You can look to see how the...

I guess that's up to you to figure out what you will need. :) (But all other parsers work by HTTP and parsing HTML only.)