Already doing a bit of the ol' porter-duff in blend_images()
Already doing a bit of the ol' porter-duff in blend_images()

robpvn/Vector-Tile-Research,jbants/TileStache,mapzen/TileStache,Billups/TileStache,mpuig/TileStache,MetGIS/TileStache,Billups/TileStache,robpvn/Vector-Tile-Research,TileStache/TileStache,MetGIS/TileStache,mojodna/TileStache,moskvax/TileStache,Blechhirn/TileStache,mpuig/TileStache,moskvax/TileStache,MetGIS/TileStache,mojodna/TileStache,jbants/TileStache,SEL-Columbia/TileStache,Kosta-Github/TileStache,Kosta-Github/TileStache,TileStache/TileStache,mapzen/TileStache,moskvax/TileStache,Blechhirn/TileStache,SEL-Columbia/TileStache,TileStache/TileStache,jbants/TileStache,Billups/TileStache,Blechhirn/TileStache,robpvn/Vector-Tile-Research,mapzen/TileStache,SEL-Columbia/TileStache,Kosta-Github/TileStache