I'm in the middle of adding code that will ZIP the Procreate JSON format back into an archive so it doesn't full work with Procreate yet
Some simple Swift 4 classes to convert a collection of colors to/from an Adobe ASE Swatch file, Procreate file or plain CSV file.
You can use this to read an Adobe ASE swatch file in and get a collection of the colors, and then write it back out to somethinglike Procreate JSON format or just CSV
import Foundation // read some data from a TXT file let io:IOManager = IOManager(name: "Copic 358", ext:"txt"); let colors:[String] = io.readTxt(); // parse the lines let csv:CSVManager = CSVManager(); if ( csv.read(lines: colors) > 0) { tester.printer(colors: csv.colors, groups: csv.groups); } // create ASE manger and add everything let ase:ASEManager = ASEManager(); ase.colors = csv.colors; ase.groups = csv.groups; // write to bytes var bytes:Data = ase.write(); // write the ASE file io.filename = "Copic 358"; io.ext = "ase"; let result:Bool = io.write(bytes); // read the file back in bytes = io.read(); let c = bytes.count if ( ase.read(block: bytes) ) { tester.printer(colors: ase.colors, groups: ase.groups); } // write back the CSV data csv.colors = ase.colors; csv.groups = ase.groups; let colors2:[String] = csv.write(); io.filename = "Copic Copy"; io.ext = "txt"; _ = io.write(colors2); // create a Procreate manager of the same colors let pro:ProcreateManager = ProcreateManager(colors: ase.colors); pro.colors = ase.colors; pro.groups = ase.groups; let json:String = pro.write(); print(json);