Legible \mathfrak capitals

[topological-modular-forms]

Problem. N. Virgo wrote:

Legible mathfrak capitals, i.e. easily distinguishable glyphs that resemble their latin counterparts enough that an uninitiated reader can easily tell which one it's meant to be.

which I agree with ($\mathfrak{Y}$ is so weird!).

Design Plan. To this end, research hundreds of different black letter styles, and come up with a great compromise between legibility and style.