Switches let you toggle certain parameters on and off or switch between multiple options. When a parameter is enabled or selected, the switch will be highlighted. For example on the Layer Pages, switches toggle between SAMPLE Mode and SYNTH Mode, toggle LFO Sync on and off, or select between Velocity Curve settings. Power Buttons are also a type of Switch, an example being the FILTERS On/Off Button.
Mode Switches (flat buttons that are side-by-side are Mode Switches)
Switches (flat buttons which are separated are On/Off Switches)