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 Create Users Icon |
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Add Create Users icon to cartIcon sizes: 256x256, 64x64, 48x48, 32x32, 24x24, 16x16, 512x512
File formats: ICO, GIF, PNG, BMP
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What Are PNG Icons?
A number of independent vendors are offering custom icons in sizes and resolutions common to certain systems. The article explains what icons are, how they are designed and implemented in various platforms, and what standards exist for Windows icons, Mac icons, and PNG icons.Computer icons are incorporated into any modern GUI. Icons are small pictures of standardized sizes that visually represent objects, actions, and other concepts. In graphical user interfaces, icons are used as a quicker, more intuitive way to communicate with the user. Icons depicting typical elements of a user interface are better visible than text, can be recognized faster, and are certainly easier on the eyes.
Originally introduced in 1970 by the Xerox Research Center and widely popularized by the Mac OS and Microsoft Windows platforms, icons make new users feel more comfortable with operating systems, learn quicker and interact more efficiently. Icons can be used to replace or supplement text commands. Widely used in menus, toolbars, on buttons and in new ribbon-type user interfaces, icons have come a long way from the original concept.
There are multiple image formats for storing icons. The Windows systems store Windows icons in the platform-specific ICO format. Apple Macintosh systems use Mac icons in their specific formats, while Unix-based systems employ PNG icons for most applications. As such, icon editing software is generally available for the Windows and Mac OS platforms, while Unix users can design PNG icons with any image editor.
As a rule of thumb, icons are square pictures that come in a variety of standard sizes and color resolutions. Most platforms support icons of 16x16 to 128x128 pixels, while some platforms readily accept icons as large as 512x512 pixels. The big 512x512 pixel icons were first employed in Mac OS Leopard.
Pixel dimensions of all icons are operating system dependent. For example, Windows icons are specified as pictures in 16 and 256-color gammas as well as True Color pictures with alpha channel. Windows icons are supplied in standard sizes of 16x16, 32x32, and 48x48 pixels. Windows Vista defines new standards for Windows icons, including icons in resolutions of up to 256x256 pixels in True Color only. Optionally, icons of 128x128 and 512x512 pixels are supported. Interestingly, the high-resolution Windows Vista icons are stored in compressed PNG format instead of Windows ICO used in older versions of Windows and for lower resolution images. Other systems such as Windows Mobile can employ standard icons of other sizes, such as 24x24 pixels.
Many independent designers are offering custom icons. Aha-Soft offers a variety of Windows icons, Mac icons, and PNG icons in all sizes and resolutions standard to those platforms. The company provides royalty-free icons individually and in matching sets that include icons drawn a common style or theme.
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