...You can create a custom string by combining any of these options, plain text (example: banana), random number from range (example: [0-20] ), random item from an array (example: [banana~apple~grapes] ). In Sketch app use Plugins\Content Generator\Images\Custom plugin to specify path to your own folder with images. Installation via Sketch Plugin Manager, in the 'Catalog' tab of the Sketch Plugin Manager window search for 'Content Generator'. More types of data, fetch content directly from different online sources, easier extensibility.