path to Font and Themes directory (Create a directory with name FontAndColorThemes if needed) ~/Library/Developer/Xcode/UserData/FontAndColorThemes/
path to code snippets (Create a directory with name CodeSnippets if needed) ~/Library/Developer/Xcode/UserData/CodeSnippets/
path to xcode templates:
/Applications/Xcode.app/Contents/Developer/Library/Xcode/Templates/File Templates