overviewer/Minecraft-Overviewer — pull request #984 by superjer (2013-09-13 18:59:03+00:00)
Title: Adding blocks for new flowers and doublePlants

... added in 13w36.

This also makes billboards 1 px taller so that the doublePlants don't have a 1 px gap in the middle.

I had to disable the random positioning (like for tallgrass) for doublePlants because the top and bottom parts usually get moved in different directions.