I can't find in the Chart API the way to remove any axis from a bar chart. For instance:
cht=bvg
chs=410x150
chd=s:StackOverflow
How to remove the gray x and y axis?
All I found is this trick: cover them with a white line and it works
cht=bvg
chs=410x150
chd=s:StackOverflow
chm=r,FFFFFF,0,-0.01,0.01,1
R,FFFFFF,0,-0.01,0.01,1
...but any "cleaner" way?