Constructor
# <LayerPanelCheckbox checkboxState handleClick color />
PropTypes:
| Name | Type | Required | Description | Default | 
|---|---|---|---|---|
checkboxState | 
          union | No | checkbox checked state, either string('indeterminate') or bool | |
handleClick | 
          func | Yes | function that handles the click of checkbox. Returns the event and the state of the checkbox (bool) | |
color | 
          string | No | string for checkbox checked color (hex) | '#152357' | 
- Since:
 - 0.5.0