Hi Bruno,
Thanks for using Syncfusion products.
We have analyzed your query and you can also achieve
your requirement (applying color for each bar segment) by using ColorEach property
of ChartSeries.
Also we would like to inform you that, currently we
do not have support to apply color for each Adornment Label. We are able to
apply single color for entire Adornment label by using AdornmentForeground property
of ChartAdornmentInfo
Please let us know if you need any further assistance.
Regards,
M. Sheik