User selects using controls (sliders, knobs, etc.)

The user is able to adjust the color over a continuous range rather than from specific provided colors

Screenshot of color filters options in iOS Settings.

Modify the colors on the display to help a person with color blindness differentiate between the colors that they have difficulty seeing.

Large, yellow rectangular software box with screen shot of MAGic software menu on cover.

A screen magnification and screen reading program for low vision computer users.