- Use diffing algorithm so you can select text and images.
- This uses textcontent, plugs a vulnerability where you could inject arbitrary javascript if you could upload a modded item with html in the name, eg, "iron-plate<img src=\"\" onerror=\"console.log('hi')\">".
- Fall back to transparent png if item image not found.
- This stops the flashing box when the image does not exist.
- (internal) Simplify `sortByKey(array, key)`.
David Roberts