Dell E1713S User Manual page 28

Standard: Loads the monitor's default color settings. This is the default preset mode.
Multimedia: Loads color settings ideal for multimedia applications.
Text: Loads color settings ideal for office environment.
Warm: Decreases the color temperature. The screen appears warmer with a red/yellow tint.
Cool: Increases the color temperature. The screen appears cooler with a blue tint.
Custom Color: Allows you to manually adjust the color settings. Press the and button to adjust the Red, Green, and Blue
values and create your own preset color mode.
Use the Displays Settings menu to adjust the monitor's display settings.
Display Settings