PanelizeCopperfill parameters
type : ‘’
clearance: [number | string] (default:0.5) Extra clearance from the board perimeters. Suitable for, e.g., not filling the tabs with copper.
edge_clearance : Alias for edgeclearance.
edgeclearance: [number | string] (default:0.5) Specifies clearance between the fill and panel perimeter.
layers: [string | list(string)] (default:'F.Cu,B.Cu') [comma separated] List of layers to fill. Can be a comma-separated string. Using all means all external copper layers.
threshold: [number] (default:15) Remove fragments smaller than threshold. Expressed as a percentage.