Fixes and Improvements

Resolution Issue Resolved!

The core of the fix was to specify the intended resolution in Unity's Player settings. Then in the Itch embed options, since it's unable to auto detect the resolution, the key was to specify the same resolution, and add a bit extra height for the WebGL template.

Backgrounds:

Sometimes I like solid colours, but for this game I decided that it would be nicer to have different backgrounds for each area (like in The Oregon Trail), so I went and found some very old drawings in the public domain. Attribution has been provided in the game's description.

Animated Sprite Text: 

So the idea was to have a spinning going image in-line with the dialogue text. I thought I was going to have to write a system for this, but it turns out that there's a  simple way of doing that with rich text tags. Assuming you have a Sprite Asset set up, it would look something like this: <sprite anim="0,7,10"> That cycles between index 0 and index 7 of your sprite sheet, at 10 frames per second. There are some informative videos on how to set that up on Youtube.