Iii. This step is important – throughout this process, we do not want to save the source file we’re working on – we’re going to be using the (thankfully) re-introduced ‘Save As’ feature. Notice in the bottom half of the dialogue box there is confirmation of both the new pixel size and the file size in Kb. ![]() You can leave the resolution setting to whatever it is. Unless you created your own image on a 1024×1024 or other square canvas, uncheck the ‘Scale proportionally’ box, and type ‘1024’ in both the Width and Height boxes. Click ‘Custom’ in the first drop-down menu, and change ‘percent’ in the Width & Height to ‘pixels’. You will get a warning message from Finder like this: I. Create a new folder on your Desktop called ‘iconbuilder.iconset’ (without the quote marks). However, as I said earlier it’s technically fairly straightforward, you just need to take care to do it correctly. This is actually the most tedious part of the process and you must be careful to carry it out exactly or your final product won’t work. Our next step then, is to use Preview to create our own iconset – all the required sizes and with the correct names so that Mac OS X will understand what to do with them. Hence, the file extension ‘icns’ (and not ‘icn’), with the ‘s’ for ‘set’. png files, of different sizes from 16pixels all the way up to 1024pixels, and is known as an ‘iconset’. icns file is actually a composite of ten. And that was what I wanted to explain: a single. If you look in the thumbnails in Preview, you’ll see there’s actually 10 versions of the same Launchpad.app icon – these are ten different sizes for various display needs. You can do this with any app, just drag it onto Preview in the same way. Don’t be afraid! As you can see, Preview opens a window showing the Launchpad icons. ![]() Locate Launchpad.app, and drag it from the Finder window to the Dock and drop it right on top of the Preview icon. Open up the Applications folder in a Finder window. png format.īefore we can do the next practical step, I need to explain something about icon files, so indulge me and try this little trick. ![]() The most important thing for now is that you save a working copy of the image in. If you’re re-using a stock image and it’s not in the right pixel size, don’t worry, we’ll get to that shortly. If you’re starting from scratch in GIMP or other software, then use a base pixel size of 1024×1024 or 516×516. There’s a wealth of stock or public domain images on sites like DeviantArt and elsewhere. Alternatively, you can use or modify an existing image. If you want to create your own, you can use a free app like GIMP or Inkscape if you don’t have commercial software like Photoshop or Illustrator. The first thing you’re going to need is a. And the best news: you don’t need any commercial software, and the process – though lengthy – is not technically demanding. Wouldn’t it be great if you could change them for something to your taste? In this tutorial, I’m going to take you through the basic steps of creating your own icons in png format, converting them into Apple’s icns format, and installing them into the application so that they display correctly throughout Finder and the Desktop. There are some Application icons that just really annoy. Update: the procedure detailed below has now been turned into a little app.
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