message: Adds an initialisation of customImages
diff: }
  }>>
  +<<if !State.metadata.has('customImages')>>
  +<<set $customImagesData to {
  +'deity': {},
  +'buildingType': {},
  +'factionType': {}
  +}>>
  +<<run State.metadata.set('customImages', $customImagesData)>>
  +<</if>>
  +
  <<script>>
  const gen = () => lib.createBadge(lib.badges.fun.random(), {imgArgs: 'style=width:100%'});
  const $badge = $(`<span id="badge" />`)
  