Custom themes broken?

In the most recent update it appears that the custom theme I’ve used for about a year has broken. I like the Dark theme except that the colors look very drab. I found someone’s posted dark theme that has brighter colors and have been using that. Now whether I select the built-in “Dark” or this “Dark 2” theme the colors are the same drab colors.

Is there something I have to now enable or fix in the JSON file for the custom theme to get my normal colors back?