Every mode has at least 1 parameter that can be adjusted. In most cases it’s the color/hue or saturation, in others it’s the speed/density, brightness, or timing interval.
To put a mode into its "adjust" state, do a long-press (hold for more than 0.75 sec., let go when the indicator flashes).
The mode will then cycle slowly through its adjustments. When you see what you like, a button press will stop the adjust cycle, selecting that adjustment.
The brief video below show how to adjust using the capsule 2.0. If you have vision props, the 1-button interface is the same.