colour in a bar chart

[my_splunk]

hy
i have a dashboard with 5 charts, three are pie charts and two bar charts
I must change automatic red color of bars of a chart.
In xml dashboard, in chart section about bar chartin in exam, i have put

<option name="charting.seriesColors">[0xFFFF00,0xFF00FF,0x0000FF]</option>

but in visualization of chart i have always automatic red bars
Can you help me?
Bye

[ayme]

This seems to be a limitation in the new HTML 5 charts (certainly works with old Flash charts)