Customising font/background color for a mode

[Taras_96]

Hi everyone,

Lots of other editors I've used to modify code allow you to customise
a font that is then assigned to a particular type of word in a
language (eg: notepad++). You might have a different font/background
for comments, keywords, whitespace, etc...

Is this possible in emacs? Does emacs have the concept of separating
words in code into comments/keywords/whitespaces?

Thanks

Taras