After updating to the multiplayer version of the game, my MacBook is no longer showing the correct app icon in my applications folder or through launchpad. The attached image should show a couple other GOG games I own that are displaying the correct app icons. I'm hoping to get back my lovely, round, high-quality app icon. Even if someone has a link that I can manually replace would be appreciated. Thanks!

I wasn't a big fan of the new icon either. If you still have a copy of the older version, it's easy enough to replace the App icon using Finder:

• <Ctrl+Click> Stardew Valley.app
• Select "Get Info"
• Drag and drop the old version of the App onto the icon in the info window

If you don't still have the old version of the app available, you might be able to find the icon, or a similar icon online. You'll require a *.icns icon file, but if you find a *.ico file you like you can convert it to a *.icns file using the iConvert Icons online converter — https://iconverticons.com/online/

Good luck :)

This looks like the old icon.

https://eternalstorms.at/selfhostedblog/wp-content/uploads/2017/02/iuntitled.png