It's possible to set the .icons to an arbitrary key value mapping
instead of an array and the game will still accept it. Convert the
icons to an array if it's an object mapping to handle this case.
Note that this doesn't preserve the order the game reads the keys in
because JavaScript reorders numeric key indexes on objects differently
to how the game orders them.
Implement the shorthand notations that Factorio recognises for colours
where individual components may be left out or the colour specified as
an array of values instead of an object.
Use a separate folder for the TypeScript build for Node.js in the dist
folder. This makes each type of build consistently have its own output
folder instead of being interleaved with the Node.js build.
Remove extra whitespace, use more consistent spacing, add missing
semicolons, using dangling commas, break up long lines, consistent
multiline operator placement, add missing JSDoc strings and so on.
Hornwitser