Since a lot of people are using the forums to share Lua scripts, I think would be useful and also fix the annoying tab problems with the quote BBCode.

It would look like this:

a dit :

-- the foo function
function foo(x)
print('input is '..tostring(x))
end

A white background would be useful also because the colors look very weird against a dark background.

I think the colours you've chosen don't look particularly good, they don't go together and hurt my eyes. There should however be the option of Lua or XML at the very least, considering both of those are posted on the forums frequently.

A monospaced, teletype font would be useful too.

/support

I support this, very good suggestion.

Although, like what Shamousey said, the colours weren't chosen wisely and aren't very clear.

Sounds good, /support