2D Background Design
BackGround
A wallpaper or background (also
known as a desktop wallpaper, desktop background, desktop
picture or desktop image on computers) is a digital
image (photo, drawing etc.) used as a decorative background of a graphical user
interface on the screen of a computer, smartphone or other electronic device. On
a computer, wallpapers are generally used on the desktop, while on a mobile phone they serve as the background
for the home screen. Though most devices come with a default
background image, modern devices usually allow users to manually change the
background image.
The term "wallpaper" was used
in Microsoft Windows before Windows Vista (where it is called the
"desktop background"), while macOS refers
to it as "desktop picture". On older systems which allowed small
repeated patterns to be set as background images, the term desktop
pattern was used.
History
The X Window System was
one of the earliest systems to include support for an arbitrary image as
wallpaper via the xsetroot program, which at least as early as the X10R3
release in 1985 could tile the screen with any solid color or any binary-image X BitMap file. In 1989, a free software program called xgifroot was
released that allowed an arbitrary color GIF image
to be used as wallpaper, and in the same year the free xloadimage program was
released which could display a variety of image formats (including color images
in Sun Rasterfile
format) as the desktop background. Subsequently, a number of programs were
released that added wallpaper support for additional image formats and other
features, such as the xpmroot program (released in 1993 as part of fvwm)
and the xv software
The original Macintosh operating system only allowed a selection
of 8×8-pixel binary-image tiled patterns; the ability to use small color
patterns was added in System 5 in
1987.[1] Mac OS 8 in 1997
was the first Macintosh version to include built-in support for using arbitrary
images as desktop pictures, rather than small repeating patterns.[2]
Due to the widespread use of personal computers, some wallpapers have
become immensely recognizable and gained iconic cultural status. Bliss, the default wallpaper of Microsoft Windows XP has become the most
viewed photograph of the
2000s.[6]
Animated backgrounds (sometimes referred to as live
backgrounds or dynamic backgrounds) refers to wallpapers
which feature a moving image or a 2D / 3D scene as an operating system
background rather than a static image, it may also refer to wallpapers being
cycled in a playlist, often with certain transition effects. Some operating
systems, such as the Android
operating system, provide native support for animated wallpapers.
Dynamically animated backgrounds have also been introduced
in iOS 7 and later versions, however they
are restricted to the ones provided by Apple. Jailbroken iOS devices can download other
dynamic backgrounds.

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