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A computer screen showing a background wallpaper photo of the Palace of Versailles A wallpaper from fractal. A wallpaper or background (also known as a 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.
In some uses, hexadecimal color codes are specified with notation using a leading number sign (#). [1] [2] A color is specified according to the intensity of its red, green and blue components, each represented by eight bits. Thus, there are 24 bits used to specify a web color within the sRGB gamut, and 16,777,216 colors that may be so specified.
A number of official and unofficial features exist that can be exploited to achieve special effects. In 320 × 200 graphics mode, the background color (which also affects the border color), which defaults to black on mode initialization, can be changed to any of the other 15 colors of the CGA palette.
1. Sign in to Desktop Gold. 2. Click the Settings button. 3. Click Personalization. 4. Click the Backgrounds tab. 5. Under the "Choose Library," select either On my PC or From pixabay. 6. Click an image to set it as your background.
WikimediaUI Dark mode – the css powering the dark mode gadget usable as a standalone style without the gadget, stable version from April 25, 2020, by User:AHollender (WMF), User:Volker E. (WMF), User:MusikAnimal. Darklands dark theme – a low contrast dark mode in development July 2023, tested with Vector legacy only, by User:Dialectric.
RGB color model. The RGB color model is an additive color model [ 1] in which the red, green and blue primary colors of light are added together in various ways to reproduce a broad array of colors. The name of the model comes from the initials of the three additive primary colors, red, green, and blue.
The test chart shows the full 256 levels of the red, green, and blue (RGB) primary colors and cyan, magenta, and yellow complementary colors, along with a full 256-level grayscale. Gradients of RGB intermediate colors (orange, lime green, sea green, sky blue, violet, and fuchsia), and a full hue spectrum are also present.
Light on dark color schemes require less energy to display on OLED displays. This positively impacts battery life and reduces energy consumption. [14]While an OLED will consume around 40% of the power of an LCD displaying an image that is primarily black, it can use more than three times as much power to display an image with a white background, such as a document or web site. [15]