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 Sick Flea Icon |
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Add Sick Flea icon to cartImage sizes: 1024x1024, 512x512, 256x256, 128x128, 64x64, 48x48, 32x32, 24x24, 16x16
File formats: BMP, GIF, PNG, ICO
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What Are PNG Icons?
A number of independent vendors are supplying custom icons in sizes and resolutions standard 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 standardized sizes that depict objects, actions, and symbols. In window-based systems, icons are used as a quicker, more intuitive way to communicate with the user. Icons representing 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 Apple Macintosh and Microsoft Windows systems, icons make new users feel more comfortable with computer systems, learn quicker and work 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 graphic formats for storing icons. The Windows systems store Windows icons in the platform-specific ICO format. Mac OS 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 their icons with just about any graphic editor.
Generally speaking, icons are square pictures that come in a variety of standard sizes and color resolutions. Most systems support icons of 16x16 to 128x128 pixels, while some platforms readily accept icons as large as 512x512 pixels. The ultra-high definition 512x512 pixel icons were first used in Mac OS Leopard.
Pixel dimensions of all icons are platform dependent. For example, Windows icons are defined as images in 16 and 256-color gammas as well as True Color images with alpha channel. Windows icons are supplied in standard resolutions 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 previous versions of Windows and for lower resolution icons. Other systems such as Windows Mobile can use standard icons of other resolutions, such as 24x24 pixels.
Many independent vendors are offering custom icons. Aha-Soft offers a variety of Windows icons, Mac icons, and PNG icons in all sizes and resolutions common to those systems. The company sells royalty-free icons individually and in matching sets incorporating icons drawn a common style or theme.
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