Estas imágenes son iconos. Hablando técnicamente, los iconos son diferentes a los archivos de imagen comunes, ya que siempre son cuadrados perfectos y usan la extensión de archivo ".ico" en lugar de ".gif", ".jpg" o ".png". Usa Microsoft Paint para crear tus propios archivos de icono ".ico". Paint.net is a very popular photo editor software for Windows. It is a feature rich software to create and convert various images into several formats. But, by default, it does not have the option to convert PNG images to ICO. Still, you can convert PNG to ICO using it. To Convert PNG to ICO using Paint.net. I wanted to set the icon for mine Microsoft .NET WPF application, but I only had a .png file. With the IconCur.dll plug-in for Paint .NET I converted By itself, Paint.NET cannot edit ICO and CUR files; however, one plug-in in particular (aptly named the Icon/Cursor Plug-In), allows you to edit ICO and CUR files. All that is needed is to download the plug-in and extract it to the Paint.NET installation directory. You can then create icons and cursors in a feature-rich environment. "Paint.NET delivers a cost-effective alternative to pricey commercial software." HostingAdvice.com About Paint.NET is image and photo editing software for PCs that run Windows. It features an intuitive and innovative user interface with support for layers, unlimited undo, special effects, and a wide variety of useful and powerful tools. ICO files contain one or more small images at multiple sizes and color depths, such that they may be scaled appropriately. In Windows, all executables that display an icon to the user, on the desktop, in the Start Menu, or in Windows Explorer, must carry the icon in ICO format. Paint allows you to rapidly create custom icons using the image and pictures stored on your hard drive. Run Paint (Start> All Programs> Accessories> Paint) Open the image in Paint Click on File > Save As. In the popping window, enter a name for the icon and as extension use ico. Under "Type" select. j. Click on the "File" menu and select "Save as" to bring up the standard Save dialog. Type any file name that you wish in the corresponding text box and add ".ico" as a suffix so Windows recognizes it as an icon. Change the "Save as type" box to "24-bit Bitmap" and click "Save" to create the icon in the present location. IcoCur.dllファイルをFileTypesホルダに保存後Paint.NETを起動すれ ばファイルの種類にIcons( ico)、Cursors( cur)、Animated Cursors( ani)が追加されます。 サイズ違いのイメージを含むIconファイルを開く際のオプション指定画面. When users want to create an icon to be used for creating a desktop icon for a customized personalized themepack file or a CD/DVD/Blu-Ray, Paint does not have the ico file name extension to save those icon files into the ico file name extension. Microsoft must add the ico icon extension that is missing in the Windows 10 Paint application.