Hello!
I have a question about the usage of the forehead_jewel tag on characters that wear a mask (or if the mask is removed, but the gemstone is visible).
As an example - post #3074587 and post #6213296
I went through a few pages of forehead jewel posts, and saw that it gets used in a way that I agree with - characters that wear a mask that has a gemstone in the forehead area get tagged with forehead_jewel. I edited the wiki to mention that masks with forehead jewels also qualify a post for this tag, but forgot to ask on the forums to make sure that other people agree.