Just a quick query, I did a search and couldn't find how to fix.
I was wondering how to change the colours of the brackets (), [], and math type symbols _, +, ^ etc.
I've attached a mock example below. The red and purple brackets/math operators are hard to read and I can't figure out how to change them. As far as I can see, there is no appropriate field to change in Tools -> Options -> Text Format
On a side note, I agree with some other posts and think that the build/compile time in TeXnicCenter is slower than it should be (I've compared against running pdflatex in the command line and TeXnicCenter is noticably slower.)