Cartesian Graphs: use circular marker instead of square one.
authorJohn Darrington <john@darrington.wattle.id.au>
Sun, 23 Mar 2014 10:34:07 +0000 (11:34 +0100)
committerJohn Darrington <john@darrington.wattle.id.au>
Sun, 23 Mar 2014 10:34:07 +0000 (11:34 +0100)
Also slightly smaller.  This I think is a bit more aesthetically
pleasing.


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