Title basically explains what my issue is, from what I understand the only way to set an icon in an tauri app is using a icns file, I could be wrong but I don't know how to get macos theme changing stuff to work with it because of the icns file.
Can't figure out how to use an icon composer icon for a tauri app
While someone here may be able to help you, I suggest asking these questions to Tauri's support as well, since your questions appear to be about the macOS support provided by their tools.