I will be building this as I work on designing my own site. This will try to incorporate every definition in stylevars to make your life easy as I had to trial and test to see what effects it had on my forum.
The red is the affected area in the pictures linked.
Blocks
block_background: Changes background color of blogs.
Pic
block_border: Did not see changes.
block_color: Changed the font color in "Whats New?"
Pic
block_font: Left blank for default. Changes font type of block (Arial, Times..etc)
block_link_color:
block_linkhover_color
block_padding
blockbody_background: Changed the bottom part in "What's New"
Pic
blockfoot_background:
Pic
blockhead_border
blockhead_color
blockhead_font
blockhead_link_color
blockhead_Linkhover_color
blockhead_padding
blockrow_padding
blockrow_background: Friends list in profile background
Pic
blockrow_border
blockrow_color
blockrow_font
blockrow_link_color
blockrow_linkhover_color
blockrow_padding
blocksubhead_background: Profile Tabs color change
Pic
blocksubhead_border
blocksubhead_color
blocksubhead_font
blocksubhead_link_color
blocksubhead_linkhover_color
blocksubhead_outline
blocksubhead_padding
Blog
vbblog_pagetitle_border
vbblog_pagettile_color
vbblog_pagetitle_font
vbblog_sidebar_padding
vbblog_sidebar_width
Common
a_extlink
avatar_height
bbcode_quote_background
bbcode_quote_border
bbcode_quote_font
bbcode_quote_padding
bbode_quote_postedby_for_font
bodybackground_
body_color
border_radius
content1_background
content2_background
content3_background
content_font