Layout options in dirvish-setup-menu don't match values in dirvish-layout-recipes

[ewhd]

Expected Behavior: when I set the values on dirvish-layout-recipes, I would expect those same values to be apparent on the dirvish-setup-menu, but instead the setup menu only ever shows the default values.

Peaking at the code, the layout options in the setup menu are hard-coded to the default values of dirvish-layout-recipes. Lines 101-104 of dirvish-extras.el:

("1" '(0 nil  0.4)  "     -       | current (60%) | preview (40%)")
("2" '(0 nil  0.8)  "     -       | current (20%) | preview (80%)")
("3" '(1 0.08 0.8)  "parent (8%)  | current (12%) | preview (80%)")
("4" '(1 0.11 0.55) "parent (11%) | current (33%) | preview (55%)"))