I forgot to include this in my other proposals, but here's how I imagine this to look:

Assuming that #275 and #287 have been implemented, when editing a tag, you would also be able to pick the icon's position. This would be a drop-down menu with the options: None, Top-Left, Top-Right, Bottom-Left, and Bottom-Right.

When viewing the main list, you would see the icon(s) in the logo/thumbnail box. All tags that have a display position set would stack so that you can see all of them at a quick glance without having to view the details side panel. This would be especially useful for things like language tags, or if you want to pin specific favorite publishers. Here I show Adventure and Escape the Room as examples.

Things to consider

• Obviously, the existing platform icons would need to be tag-ified, and all set to display on Bottom-Right to preserve the current behavior
• Maybe to make things less tedious, you could set the position at the Category level, while allowing you to override that at the Tag level (similar to the #275 proposal)?
• The "Extreme" icon would need a special place for setting its location. Maybe in the Config menu in the same location where Tag Filters are defined?