Introduction
How to change the background color of a graph for one chart and the default value.
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Steps for one chart
You can set the background color of an individual chart via the UI. Click on the icon Additional Chartig Options (4th icon from the left) > Borders and Colors tab > Background Color.
How to change the default color ?
However you cannot set charts' background color globally.
Some Corda parms have been externalized to XML files in the style directory \OracleBI\web\app\res\s_oracle10, and you can change the default color for the actual chart in the palette.cxml file by changing the order of the colors but you cannot set charts' background color globally.