I am building a Python application bundled with PyInstaller which is available for Windows, Linux (as AppImage) and MacOS.
I need shortcut icons for those. I have a logo, but I am struggling to bring it to the right format. It seems to me that all three platforms use different icon sizes and formats.
Is there any online/offline generator that allows me to create icons for all three platforms from a jpg file?
It's easier if you just use auto-py-to-exe, it uses pyinstaller, but it auto-generates the command, and so you can just upload the image to a GUI
How to create shortcut icons for Windows, MacOS and Linux applications bundled with PyInstaller