[plt-scheme] Feature request: syntax coloring of . , ,@ #, #,@

Hi,

Thanks for making DrScheme so great!

Could the reader syntaxes , ,@ #, #,@ be syntax-highlighted as the
Constant color like ' ` #' #` are?  And could the reader pair syntax .
be colored as the Parenthesis color?

Or maybe something's wrong on my end? (Currently 371.3-svn26oct2007,
though those have never been colored for me in previous versions.) 

-- 
: Derick
----------------------------------------------------------------