Knob and slider provides following controls:

- <kbd>Ctrl</kbd> + <kbd>Left Click</kbd>: Reset value.
- <kbd>Shift</kbd> + <kbd>Left Drag</kbd>: Fine adjustment.
- <kbd>Middle Click</kbd> : Rotate through minimum, default and maximum value.
- <kbd>Shift</kbd> + <kbd>Middle Click</kbd> : Take floor of current value.
  - **Note**: For decibel (`dB`) parameters, floor is applied after the value is converted to amplitude.
