| scoreGroup | yes | An unique identifier defining the layer |
| type | yes | The layer type (should be group) |
| label | yes | A translatable property defining the layer name |
| panelGroup | yes | A translatable property defining the form controls group in the panel |
| dimensions | yes | An array defining the dimensions of the image, as a percentage (the format is [width, height], can be AUTO to define only the width or the height and scale) |
| children | yes | The list of the layers in the group |
| position | yes | An array defining the x/y position of the image, as a percentage (the format is [width, height]) |
| positionCentered | - | An array of booleans (TRUE or FALSE, default FALSE) defining if the position of the layer should be calculated from the top/left corner or from the horizontal center/vertical center (the format is [horizontal, vertical]). This allows to center a layer independently of its dimensions |
| positionFrom | - | An array of booleans defining if the position or the layer should be calculated from the default left (horizontal axis) and top (vertical axis) or if it should be different (the format is [horizontal, vertical], can be left|right and top|bottom) |
| display | - | Specifies how the layer should be displayed (can be none, inline, block, inline-block) |
| margin | - | Specifies the margin outside of the layer, needs to be defined in %, vw or vh (follows the CSS specification) |
| padding | - | Specifies the padding inside of the layer, needs to be defined in %, vw or vh (follows the CSS specification) |
| hideFromPanel | - | Allows to hide the controls of the layer in the panel (default is false). Useful if the layer should be controller through properties |
| hideFromLayers | - | Allows to hide the the layer in the layers list (default is false). Useful if the layer should not be managed by the user |
| offsetSelector | - | In some situations, it is required to calculate the coordinates/dimensions of a layer regarding it offset for the selector (default is false) |