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 Fire Alarm On Icon |
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Add Fire Alarm On icon to cartIcon sizes: 256x256, 48x48, 32x32, 24x24, 20x20, 16x16
File formats: ICO, GIF, PNG, BMP
Purchase entire Standard Road Icons now! View Standard Road Icons now!
Download demo icons
What Are Mac Icons?
Numerous independent vendors are supplying custom icons in sizes and resolutions common to certain systems. The article explains what icons are, how they are designed and implemented in various systems, and what standards exist for Windows icons, Mac icons, and PNG icons.Computer icons are incorporated into any modern GUI. Icons are small pictograms of standard sizes that visually represent objects, actions, and other concepts. In window-based systems, icons are used as a faster, more intuitive way to communicate with the user. Icons representing typical elements of a user interface are more visually appealing 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 platforms, icons make new users feel more comfortable with operating systems, learn faster and work more efficiently. Icons can be used to replace or supplement text commands. Widely used in menus, toolbars, on buttons and in the latest ribbon-type user interfaces, icons have come a long way from the original concept.
There are several image formats for storing icons. The Windows systems use Windows icons in the platform-specific ICO format. Mac OS 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 Mac OS platforms, while Unix users can create PNG icons with just about any graphic editor.
As a rule of thumb, icons are square images that come in a variety of standard sizes and color resolutions. Most systems use icons of 16x16 to 128x128 pixels, while some systems readily accept icons as large as 512x512 pixels. The high-resolution 512x512 pixel icons were first used in Mac OS Leopard.
Pixel dimensions of all icons are operating system dependent. For example, Windows icons are defined as pictures 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 implements new standards for Windows icons, including icons in sizes 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 images. Other platforms such as Windows Mobile can use standard icons of other sizes, such as 24x24 pixels.
Many independent vendors are offering custom icons. Aha-Soft offers a wide selection of Windows icons, Mac icons, and PNG icons in all sizes and resolutions common to those platforms. The company sells royalty-free icons individually and in matching sets that include icons drawn a common style or theme.
Copyright © 2005-2012 Aha-Soft. All rights reserved.
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