[adam-f]

is it

    $ms-ratio: $golden;

or

    $ms-ratio: golden;

?

[max_luster]

It's $ms-ratio: $golden;

When you bring Modular Scale into your project it will include a number of global variables including $golden with commonly used ratios in design. They're useful to try out when you're experimenting with different $ms-ratios. Check out the list here https://github.com/Team-Sass/modular-scale#ratios

[tixzdk]

    $ms-ratio: $golden

See: https://github.com/Team-Sass/modular-scale#usage