Defines what type of fix should be carried out. Slivers: The action adds copper to fill areas where a sliver is located. Peelables: The action reduces copper (adds negative features) to areas where peelable parts are located. Note:
This option is relevant only for Signal & Mixed Layers. For Power
& Ground layers, the action will fix only peelables.
For SM layers, the action always fixes slivers, regardless of what fix was set in this parameter.