![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
|||||||||||||||||||||||
|
Icon sizes: 48x48, 32x32, 24x24, 20x20, 16x16, 256x256, 128x128, 64x64, 512x512 File formats: ICO, GIF, PNG, BMP ![]() ![]() ![]() ![]() What Are Icons?Numerous independent vendors are supplying custom icons in sizes and resolutions standard to certain systems. The article explains what icons are, how they are designed and implemented in various systems, and what standards are defined 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 visually represent objects, actions, and other concepts. In graphical user interfaces, icons are used as a faster, more intuitive way to communicate with the user. Icons depicting typical elements of a user interface are more visually appealing than text, can be recognized faster, and are easier for new computer users. Originally introduced in 1970 by the Xerox Research Center and widely deployed by the Mac OS and Microsoft Windows systems, icons make new users feel more comfortable with operating systems, learn quicker and interact more efficiently. Icons can be employed to replace or supplement text commands. Commonly 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 file formats for storing icons. Microsoft Windows systems store Windows icons in the platform-specific ICO format. Apple Macintosh systems 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 Mac OS systems, while Unix users can design their icons with any graphic editor. Generally speaking, icons are square images that come in a number of standard sizes and color resolutions. Most platforms support icon sizes of 16x16 to 128x128 pixels, while some systems readily accept icon images as large as 512x512 pixels. The ultra-high definition 512x512 pixel icons were first used in Mac OS Leopard. Pixel resolutions 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 sizes of 16x16, 32x32, and 48x48 pixels. Windows Vista implements new standards for Windows icons, including icons in resolutions of up to 256x256 pixels in True Color only. Optionally, images 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 previous versions of Windows and for lower resolution icons. Other platforms such as Windows Mobile can employ standard icons of other sizes, such as 24x24 pixels. Numerous independent designers are offering custom icons. Aha-Soft offers a wide selection of Windows icons, Mac icons, and PNG icons in all sizes and resolutions standard to those systems. The company sells royalty-free icons individually and in matching sets incorporating icons drawn a common style or theme. ![]()
| Copyright © 2009-2022 Aha-Soft. All rights reserved. |
|