In eclipse comments such as TODO and FIXME were always bold. The thing with important comments is that they are verbose, so they can span for example 5 lines (

In eclipse comments such as TODO and FIXME were always bold. The thing with important comments is that they are verbose, so they can span for example 5 lines (or 3 in this example). Because of this, they already have more attention. I think most themes are pretty sane. There's a mixture of blue, darkblue and black for keywords and methods/vars. For contrast, strings and numbers are red and green. Comments are green, so they stand out enough for me.