Is it possible to add code formatter?

[tuoyitian]

I think just use the JavaScript code formatter will do the job since the syntaxes are similar.

[YellowAfterlife]

A long time ago, there was an attempt but it couldn't handle a lot of things so it was eventually removed.

gml_fmt was good at the time, though it's not up to date with 2.3+ syntax and there are already >4000 lines of Rust in it.

JavaScript code formatters tend to panic as soon as they see something that doesn't happen in JS, like constructor syntax or GML-specific keywords. But if you can find one that doesn't act weirdly, you can totally make a plugin that wraps it