Description

Describe the change. If there is an associated issue, please include the issue link (e.g. "Closes #xxx"). For UI changes, please also include screenshots.

This eliminates the 250ms delay between a local task completing and the next redraw. Redraws are only triggered by messages in the queue (and not events), so we can send an empty message to trigger a redraw.

I think it'd be a good idea to make all tasks run on the main thread, since we're heavily I/O bound anyway. Should cut down on wasted effort, and eliminate the Send bound on everything.

Known Risks

What issues could potentially go wrong with this change? Is it a breaking change? What have you done to mitigate any potential risks?

Changes to the core of the event loop are always risky. Mitigated with a whole bunch of existing tests.

QA

How did you test this?

Hit buttons and shit

Checklist

• Have you read CONTRIBUTING.md already?
• Did you update CHANGELOG.md?
  • Only user-facing changes belong in the changelog. Internal changes such as refactors should only be included if they'll impact users, e.g. via performance improvement.
• Did you remove all TODOs?
  • If there are unresolved issues, please open a follow-on issue and link to it in a comment so future work can be tracked