$type: GridButtons
name:

width:
height:
buttonsType:

# Relace child data by game objct
background:
buttons:     # Game objects in 2d array
    - 
        - $type:
          # ...
        - $type:
          # ...
    -
        - $type:
          # ...
        - $type:
          # ...

# Optional
column:
row:
createCellContainerCallback:
    child:
        $type:
        # ...
    column:
    row:
    align:
    padding:
        left:
        right:
        top:
        bottom:
    expand:
    key:
# ----

expand:
click:
    mode:
    clickInterval:
space:
    left:
    right:
    top:
    bottom:
    column:
    row:
    indentLeftOdd:
    indentLeftEven:
    indentTopOdd:
    indentTopEven:

draggable: