If the word "Favor" appears in the title of a card, the heirloom section, or the type line, it is rendered in bold text. This also applies to words containing "Favor," presumably to account for "Favors" appearing in card text. These words should only be bolded in the card description.
Example:
![Favor Bug](https://user-images.githubusercontent.com/24846795/220429779-588ea248-c269-4b38-b87c-3b484e7fefcd.png)