M19 symbol doesn't match actual glyph
The M19 set symbol in the font does not match the actual glyph on the card. Also, when you turn on `ss-grad`, it make the differences even worse. At smaller font sizes, it's almost impossible to work out what set it is. (I believe this applies to all core sets from M10 - M19)

<img width="615" alt="screen shot 2018-12-27 at 11 28 27 pm" src="https://user-images.githubusercontent.com/1643512/50502755-b81a9000-0a2f-11e9-8851-8ab2cd3d0265.png">

I don't see a way to replicate the actual glyph. Even if I made the `background-color` black, it would still not be exactly like the glyph.

<img width="816" alt="screen shot 2018-12-27 at 11 36 39 pm" src="https://user-images.githubusercontent.com/1643512/50502819-48f16b80-0a30-11e9-943d-4654a651bc96.png">

Is there any way to get this close in CSS or is there anything that can be fixed in the font?