svg-term-cli: Node always fatal errors

Trying one of the examples I just get:

svg-term --cast=113643 --out examples/parrot.svg                   
/Users/lukechilds/.config/yarn/global/node_modules/svg-term-cli/lib/cli.js:355
            throw err;
            ^

TypeError: Cannot use 'in' operator to search for 'black' in undefined
    at REQUIRED_COLORS.filter.key (/Users/lukechilds/.config/yarn/global/node_modules/term-schemes/lib/parsers/hyper.js:122:30)
    at Array.filter (<anonymous>)
    at getHyperConfigErrors (/Users/lukechilds/.config/yarn/global/node_modules/term-schemes/lib/parsers/hyper.js:122:10)
    at Object.hyper (/Users/lukechilds/.config/yarn/global/node_modules/term-schemes/lib/parsers/hyper.js:23:22)
    at extractTheme (/Users/lukechilds/.config/yarn/global/node_modules/svg-term-cli/lib/cli.js:292:24)
    at getTheme (/Users/lukechilds/.config/yarn/global/node_modules/svg-term-cli/lib/cli.js:277:11)
    at /Users/lukechilds/.config/yarn/global/node_modules/svg-term-cli/lib/cli.js:147:23
    at Generator.next (<anonymous>)
    at fulfilled (/Users/lukechilds/.config/yarn/global/node_modules/svg-term-cli/lib/cli.js:5:58)
    at <anonymous>

I’ve tested on 2.0.4, 2.0.3 and 2.1.0-1. All give me the same error.