Building Lumos from a Figma file

A design file is a picture of an intention, not a source of truth. The job is to land the intention in the token system with as few new tokens as possible, and to be explicit about every guess.

The rule that outranks the rest: never invent a variable or a class to paper over an inconsistency in the design. Surface it and ask. Two paddings that differ by 6px are usually one padding drawn twice. Ask which it is before writing anything.

What Figma cannot say

Three conversions are always needed, because the file physically cannot hold the values this system uses.