 |
|
 | |
 | |
 | |
 | |
 | |
 | |
|
 | ||||||||
|
 |
 |
|
 Letter Icon |
|
Add Letter icon to cartIcon sizes: 48x48, 32x32, 24x24, 20x20, 16x16, 256x256, 128x128, 64x64, 512x512
File formats: ICO, GIF, PNG, BMP
Purchase entire Large Glossy Icons now! View Large Glossy Icons now!
Download demo icons
What Are PNG Icons?
Many independent vendors are supplying custom icons in sizes and resolutions common to certain systems. 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 incorporated into any graphical user interface. Icons are small pictograms of standard sizes that visually represent objects, actions, and symbols. In window-based systems, icons are used as a quicker, more intuitive way to communicate with the user. Icons representing common elements of a user interface are better visible than text, can be recognized faster, and are certainly easier on the eyes.
Originally developed 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 computer systems, learn quicker and interact more efficiently. Icons can be employed to replace or supplement text messages. 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 several graphic formats for storing icons. The Windows systems use Windows icons in the platform-dependent ICO format. Apple Macintosh systems store Mac icons in their specific formats, while Unix-based systems use 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 any image editor.
As a rule of thumb, icons are square pictograms that come in a number 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 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 specified as pictures in 16 and 256-color gammas as well as True Color images with alpha channel. Windows icons come in standard resolutions of 16x16, 32x32, and 48x48 pixels. Windows Vista implements new standards for Windows icons, including icons in sizes 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 older versions of Windows and for lower resolution images. Other systems such as Windows Mobile can employ 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 incorporating icons drawn a common style or theme.
Copyright © 2009-2022 Aha-Soft. All rights reserved.
|
More info
