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Icons
- Composition
An
icon is comprised of several parts: a symbol, border, background,
and text label. While by definition an icon must contain a graphic
element or symbol, the other parts are optional. Each part selected
for use should add to the icon meaning.
- Borders
- Borders can add consistency to a group of icons, help to clarify
its meaning, and provides the icon a start and stop point, important
for activation on a computer screen. However, the space available
for icons is typically at a premium. Borders will require more
space and may limit the image size that can be used, making the
icon less distinct. The use of borders must be carefully considered
in the overall design, particularly for use on computer screens.
- Background
- An appropriate background can emphasize the symbol/graphic to
increase visibility and comprehension. Backgrounds can be used
to group icons or to show an icon's state. Care must be taken,
however, that the background does not overwhelm and conflict with
the central image.
- Text
Label - If the meaning of an icon is not likely to be
intuitively obvious to all users, a text label can be added. Studies
have shown that a text label in addition to the graphic can facilitate
comprehension, decrease activation time, and reduce errors.
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