Editing Icon (computing) (section)

=== Size and scalability ===

The standard icon is generally  the size of an adult thumb, enabling both easy visual recognition and use in a [[touchscreen]] device. For individual devices the display size correlates directly to the size of the screen real estate and the resolution of the display. Because they are used in multiple locations on the screen, the design must remain recognizable at the smallest size, for use in a directory tree or title bar, while retaining an attractive shape in the larger sizes. In addition to scaling, it may be necessary to remove visual details or simplify the subject between discrete sizes. Larger icons serve also as part of the accessibility features for the visually impaired on many computer systems. The width and height of the icon are the same (1:1 [[Aspect ratio (image)|aspect ratio]]) in almost all areas of traditional use.