Preload 
Preload assets so they will not be loading on player's eyes.
WARNING
Works only with image assets
Parameters 
| Name | Type | Optional | Description | 
|---|---|---|---|
| source | string | ❌ | Picture source you want to preload | 
Usage 
ts
var assets = {
  home: "./home.png",
  class: "./classroom.png",
};
engine.script({
  start: [
    // engine.action.preload(assets.home), // calling preload here will have no effect
    engine.action.showBackground(assets.home),
    engine.action.preload(assets.class), // preload is called before action that takes players's time to skip
    engine.action.say("Person", "Lorem ipsum dolor sit amet"),
    engine.action.showBackground(assets.class), // so when this action will be used image will already be loaded
  ],
});You might want to look at more preload options.