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Program Icons
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perfecticon.com
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Toolbar
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toolbar-icons.com
Website Icons
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perfecticon.com
Windows Icon
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icon files.
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www.777icons.com
Toolbar
Icon Images
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Website Icons
Search web
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icon sets.
perfect-icons.com
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 Fist Icon |
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Add Fist icon to cartIcon sizes: 256x256, 48x48, 32x32, 24x24, 20x20, 16x16
File formats: ICO, GIF, PNG, BMP
Purchase entire Standard Hand Icons now! View Standard Hand Icons now!
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What Are PNG Icons?
Numerous independent vendors are offering custom icons in sizes and resolutions common to certain computer platforms. The article explains what icons are, how they are used and implemented in various systems, and what standards exist for Windows icons, Mac icons, and PNG icons.Computer icons are an integral part of any graphical user interface. Icons are small pictograms of standard 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 standard elements of a user interface are better visible than text, can be recognized faster, and are easier for new computer users.
Originally introduced in 1970 by the Xerox Research Center and widely popularized by the Apple Macintosh and Microsoft Windows systems, icons make computer novices feel more comfortable with computer systems, learn faster and work more efficiently. Icons can be used to replace or supplement text messages. Widely used in menus, toolbars, on buttons and in the latest ribbon-style user interfaces, icons have come a long way from the original concept.
There are several image formats for storing icons. The Windows systems store Windows icons in the platform-dependent ICO format. Apple Macintosh computers store Mac icons in their specific formats, while Unix-based systems employ PNG icons for most applications. As such, icon software is generally available for the Windows and Apple systems, while Unix users can create their icons with any graphic editor.
As a rule of thumb, icons are square pictograms that come in a number of standard sizes and color resolutions. Most platforms support icon sizes of 16x16 to 128x128 pixels, while some platforms readily accept icon images as large as 512x512 pixels. The high-resolution 512x512 pixel icons were first used in Mac OS Leopard.
Pixel resolutions of all icons are platform 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 higher resolution versions of Windows Vista icons are stored in compressed PNG format instead of Windows ICO used in older versions of Windows and for lower resolution icons. Other platforms such as Windows Mobile can use standard icons of other resolutions, e.g. 24x24 pixels.
Numerous independent vendors are providing custom icons. Aha-Soft offers a wide selection 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.
Copyright © 2005-2022 Aha-Soft. All rights reserved.
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