orbit4-5/app/templates/orbit_bootstrap/modules/announcement/info.json

{
	"frontend": [
		{
			"filename" : "index",
			"name" : "Index with image",
			"thumbnail" : "thumbnail-block-list.png"
		},
		{
			"filename" : "index1",
			"name" : "Index without image",
			"thumbnail" : "thumbnail-block.png"
		}
	],
	"widgets" : [
		{
			"filename" : "widget",
			"name" : "Widget with image",
			"thumbnail" : "thumbnail-block.png"
		}
	]
}