Device, method, and graphical user interface for adjusting the appearance of a control

摘要

An electronic device with a display displays a user interface on the display. The device determines a first set of content-display values for one or more content-display properties of first content that corresponds to a respective region of the display. The device determines a first set of control-appearance values for one or more control-appearance parameters based on the first set of content-display values. The device displays a control in the respective region of the display, wherein an appearance of the control is determined based on the first content and the first set of control-appearance values.