Expected Behavior

In raw CSS, I can use the following rule to make text uppercase -

text-transform: uppercase;

I could also achieve something similar using a different rule to get "small-caps" -

font-variant: small-caps;

So it would be cool to allow this to be controlled via a setting manageable for usages of fonts (e.g. on a per-heading basis).
In src/js/themes/base.d.ts:

    font?: {
      face?: string;
      family?: string;
      height?: string;
      maxWidth?: string;
      size?: string;
      weight?: number | string;
      variant?: string; // Very epic new rule, I can now make my text "uppercase" so easily!
    };

Note: It is probably crazy to have the entire theme globally uppercase all fonts, but I am assuming this global::font specification is how the other font: {} definitions also work.

Actual Behavior

The current global::font object piece is in src/js/themes/base.d.ts is as follows:

    font?: {
      face?: string;
      family?: string;
      height?: string;
      maxWidth?: string;
      size?: string;
      weight?: number | string;
    };