John Wiggins

This certainly fixes the zooming issue, but it needs to be tested against lots of existing code before merging. When running my current consulting project with this change, panning of...

What about requiring Cython for developers tracking the master branch, but including the .c file in the sdist?

I suspect this is fixed by Enable 5.0.0 since it removes the OpenGL linkage from `kiva.agg`. It's worth testing.

Ref: enthought/enable#392

This is probably covered by #161

enthought/enable#750 covers the C++ exception handling, but even with enthought/enable#751 in place this still crashes when the `OverflowError` isn't caught (even though its a Python exception now). This only appears...

Probably fixed by enthought/enable#392

I don't disagree. I just ran into this particular issue, so I wanted to make a note.

@dgoeries Is it useful to link to the relevant code in Karabo now that it is [visible](https://github.com/European-XFEL/Karabo/) on GitHub? Are you still stuck in an old version of traits, or...

[This section of the docs](https://docs.github.com/en/actions/guides/caching-dependencies-to-speed-up-workflows#restrictions-for-accessing-a-cache) has what I believe is the answer. To fix this, I think we need to create an action which runs on the `master` branch after...