In my professor’s version of R, the different types of text become different colors when you write in the editor(for example functions are blue while text in quotation marks is green). For me, however, all the text is one color, which makes it harder to understand the code quickly. Is there some way I can change this?

I have tried applying different themes however, they do not convert when typing in my codes.

Thanks in advance!

here is an example of my view
here is an example of my professor’s

As a beginner to R it makes it difficult to learn

enter image description here

this is the theme I am supposedly on.