in lib/cli/commands.ts [18:35]
export function registerCommands(yargs: any): any {
yargs
.command('', 'Default command. Builds all of the files.', markAsStrict)
.command('css', 'Builds only the CSS files.', markAsStrict)
.command('js', 'Builds only the JS files.', markAsStrict)
.command('theme',
'Builds the theme files for a single theme.',
registerThemeArgs('string'),
processSingleThemeArgs
)
.command('themes',
'Builds the theme files for multiple themes.',
registerThemeArgs('array'),
processMultipleThemeArgs
);
return yargs;
}