(Bug 1706) add snakes and boxes style
-- add style files
-- add preview pic
(Bug 1706) add snakes and boxes style
-- fix display of comments
-- remove trailing spaces and extra blank lines
(Bug 1706) add snakes and boxes style
-- add other themes w/ previews
Merge pull request #549 from ninetyd/bug1706/style_snakes_and_boxes

(Bug 1706) add snakes and boxes style