This is what I see in VScode:
I have the Salesforce extension packed installed, but I'm not sure everything's working correctly here. Keywords "with" and "sharing" are not coloured, plus I don't get any autocomplete suggestions when writing code.
I don't even get suggetions for objects fields when writing code. For example:
I don't get any suggestion for the newCase fields when using dot notation.
Is this the expected behaviour?