'show image <resource> [with [animations] [classes]]'
image allows you to display an image. For character sprites, take a look at the show character action.
Requires User Interaction: No
In case of images, they can be declared to use an identifier or you can also use the file's name. The root directory for images will always be img.
'show image flower center with fadeIn', // If flower is declared'show image flower.png center with fadeIn' // If flower isn't declared