GIS and Maps - Symbology ← Knowledge Base I don’t see any symbols in the Symbology Selector that I like. Are there more symbols that I can pick from? What is a layer file and how does it differ from a shape file, coverage or geodatabase? I have joined my table to a county layer. I have many values in my table I want to show, all based on county boundaries. How is the best way to do this? I have quantitative (numeric) data, and I want to use the same classification breaks for a whole series of maps. Can I copy the symbology from one layer to the next? How can I define my own colors?