<...
attributeName="string
[1]"
attributeType="
string (value comes from list: {'XML'|'CSS'|'auto'})
[0..1]"
additive="
string (value comes from list: {'replace'|'sum'})
[0..1]"
accumulate="
string (value comes from list: {'none'|'sum'})
[0..1]"
to="string
[0..1]"
from="string
[0..1]"
by="string
[0..1]"
values="string
[0..1]"/>