So far, the most challenging part was highlighting things that counts as comment rather than pointers to image pixels or accessible variables. That's not the end of my trouble though.

I do want to figure out how to highlight "expr" including newlines inside expr. expr is basically any mathematical expression that is utilized on JIT compilation.

• if expr
• repeat expr
• variable={expr}
• variable:=expr <- : can be replaced with operator and it will still apply.
• eval expr
• eval "expr"
• check "expr"
• fill expr
• fill "expr"
• eval>expr
• eval >"expr"
• fill >expr
• fill >"expr"
• {expr}
• for expr
• {"expr"}
• while expr

Along with that to set up regex inside it to highlight section of expr.

While still maintaining priority of regex. So, if one regex is more important, it'll overwrite whatever highlighted.