Thank you for your contribution @pilunte23

I checked this feature out, but unfortunately I won't be merging this in. Since you spent your time and effort on this, I wanted to provide some insight into my reasoning.

Firstly, I acknowledge that this change attempts to improve the immersion of moving around the mythos by highlighting the art of the locations. On paper this sounds great, but in implementation I have the following issues:

1. If the art is low quality the result is jarring. I don't know if I will always have access to good quality card scans for cards.
2. Moving around is something that happens a lot, and granted this only happens on reveal it still delays visual feedback and interaction substantially.
3. If for some reason the card art is displayed on the bottom of the card instead (see the cosmic emissary for an example of a frame being flipped), I have added maintenance and implementation work to do to support it.

Now as you mentioned this was inspired by the Encounter Card effect. But the Encounter Card effect exists because of original shortcomings in the system. When you drew a card in some situation it would not be visible (or even known) before you needed to respond to it. This made interactions confusing and at the time I did not have a good way of showing this treachery/enemy in the UI as a regular card so I opted for the now present encounter card effect. It's a bit over the top maybe, but it handles a key interaction point, to make you aware of the card and what it does. We do not get the same benefit from highlighting the card art.

Since every new effect or design decision I make is something I have to maintain moving forward I am going to pass on this particular change. I hope that doesn't discourage you from making future contributions. I think all contributions, even ones I don't merge, are important. They help me get more insight into the types of things the community might want me to focus on or improve on.

Regarding PR, I can understand; the card resolution might be of average quality, so the overall look isn't great.

My suggestion was primarily to try and highlight the illustrations, which are too easily overlooked.
I completely understand that this can disrupt the flow (perhaps by adding an option to enable or disable it in the settings).
But I understand that the overall quality isn't high enough anyway.