App icon compatible with macOS Tahoe

[cdamus]

What it does

As of macOS Tahoe, icons that are not squircles are forced into ugly grey squircles by the OS. Compose a new icon compatible with Tahoe. Update electron-builder to support the new Icon Composer icon format.

Fixes #456

How to test

Run an Electron package build: yarn electron package and launch the Electron app on macOS. You should see something like this in the Dock:

Review checklist

• as an author, I have thoroughly tested my changes and carefully followed the review guidelines

Reminder for reviewers

• as a reviewer, I agree to behave in accordance with the review guidelines

[sgraband]

@cdamus Thank you for the changes! It seems like we now have issues with our build infrastructure, as the .icon (Icon Composer file) is not yet supported in macos-15. We use macos-15 because this mimics our runner for the release afaik. @jfaltermeier It would be quite the effort to update that one, right? Or would we lose compatibility with older mac versions?

[jfaltermeier]

We switched to 15 because the old mac runner for Intel architecture was deprecated, and they added a new label for macOS 15, see actions/runner-images#13045.

This is the last runner with Intel arch, so I think we are stuck with this until we drop support for Intel.

[cdamus]

Ah, OK. Perhaps then I'll export an icon.icns from the Icon Composer project and leave the build otherwise unchanged.

[cdamus]

Commit ecff29f exports the Icon Composer project as an *.icns file and uses that in the build. So the Electron Builder dependency upgrade then can also be reverted.

Unfortunately, it does appear that, despite being obviously squircle-shaped and exported from Icon Composer on macOS Tahoe, this icon does nonetheless end up in the Squircle Jail. Oh, well. It still looks better than before.

[ndoschek]

Hi @cdamus, thanks for this improvement!
Unfortunately, I caused a conflict as I just merged a PR that renamed the icon directories, but hopefully the rebase will be quick.
I'll ask Colin to take a look at this PR. Thanks!

[cdamus]

Commit 4a32386 resolves the conflicts.

[cdamus]

I've pushed a new icon file that was built using the latest Electron Builder on Tahoe from the Icon Composer project. It is a different result from the one I pushed previously, which was built from an iconset of PNGs via iconutil. Perhaps it will break out of Squircle Jail.

[cdamus]

I've pushed a new icon file that was built using the latest Electron Builder on Tahoe from the Icon Composer project. It is a different result from the one I pushed previously, which was built from an iconset of PNGs via iconutil. Perhaps it will break out of Squircle Jail.

It seems to work. Tahoe is not interfering with this icon

[colin-grant-work]

Works for me on Tahoe 👍