This a page background image for Moodle that allows you to "brand" a Moodle page with a background image in the standard Boost/Classic themes(not tested in others).
To use, simply extract the .txt file from the zip package and drag and drop onto the "bundle" area on the template.
To use in the course: enter the atto editor (label, description etc) click the generico icon and select the "pagebackground" button. Where it says "insert URL here"and you will need to put in a full path to an image . The image should be 1920 x 1080 or smaller with a ratio of 16:9. Remember larger images = larger load times
For http sites it must be of the format http://www.yoursite.com/path/sampleimage.jpg
For https sites it must be of the format https://www.yoursite.com/path/sampleimage.jpg
You cannot mix http/https or most browsers will block it.