Asides (e.g. Additional Information) are barely readable when using light theme

[ThorstenHans]

When browsing developer.fermyon.com using the light theme, asides like "Additional Information" are super hard to read.

For example see the "Additional Information" on this page https://developer.fermyon.com/cloud/develop#install-a-template

[itowlson]

I was thinking "I don't remember it being faint" and lo, the text on mine and yours look dramatically different:

Maybe we are letting the browser default or substitute a font somewhere, resulting in you getting that very spindly one?

[ThorstenHans]

Checked again.

I have the same rendering as @itowlson when using Safari on MacOS. However, Chrome on MacOS renders it like shown above: