The process of removing a small amount of material from the molded-in panel and door seams by dragging a very sharp point in the lines. This creates a deeper line, which when painted appears more realistic as a gap in sheetmetal. This is commonly done with a designated tool (panel scriber) or the back edge of a new hobby knife. [B]Shrink Marks [/B]Small depressions in the surface of a part where the plastic shrank as it cooled when it was being produced.