I am a beginner in learning C# in Grasshopper and maybe you could clear this particular doubt for me.
Whenever I try to code a new list, right after closing the function and inserting the open parenthesis, The function is translated into something known as Light.
this is a known bug, not related to Grasshopper, but to the open source editor underneath. You can skip it by pressing right and left arrow to surpress the wrong autocompletion. Its just one of those annoying issues… Rather worse is the lack of setting breakpoints and to debug.