The idea is you create a png file for each size you want, then create an icns file in Icon Composer, and import your various png files into it. Most other editors don't support all the possible features. This is the only officially sanctioned way to create icns files. PS: If anything goes wrong, “png2icns” will complain at the command line (e.g. Apple provides Icon Composer as part of their free developer tools. Also you can let the shell find the correct PNG file by using the wildcard (*): png2icns icon.icns icon_*px.png The first argument is the output filename. As the man page suggest you need to provide all PNG files, that you want to be part of the icon, as argument. On Ubuntu it comes with the package “icnsutils”, which can simply be installed by executing: sudo apt-get install icnsutils rwxr-xr-x 0 jens jens 9883 Feb 24 10:47 icon_256px.pngĮnsure that you have the “png2icns” application installed. Place them in any folder you like: -rwxr-xr-x 0 jens jens 1427 Feb 24 10:49 icon_16px.png If you are creating an Eclipse RCP launcher, you will, most likely, have them anyway for creating your Windows “ico” file. It is a small command line tool which simply creates an “icns” files from some “png” files.Ĭreate your icon files as “png” in multiple resolutions. There are some fine tools out there for Mac OS, but if you are running Linux and don’t want to buy a Mac just for creating some icon files, png2icns comes to the rescue. While The Gimp can easily create XPM and Windows ICO files, when it comes to Mac OS “icns” format, you won’t have any built in support. Time again for some new icons for an Eclipse RCP launcher.
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January 2023
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