While recently attempting to add a webpart with a report and chart to create a dashboard, a customer discovered that as they moused over the data points in the chart, the tooltip splashed a very nice tooltip with a yellow background and white text. Very nice, but completely unreadable. The new revised CSS file for Worfklow and Servicedesk is attached below. The password is symantec. After extracting the file to your Workflow or Servicedesk Server, simply copy the file to …\symantec\workflow\ProcessManager\App_Themes\Symantec and overwrite the existing file.
If you would like to manually address the problem, browse to …\symantec\workflow\ProcessManager\App_Themes\Symantec, and find the Default.css file. Open the file in a text editor, and add the following snippet to the bottom of the file. Save and then refresh the web page. Lastly, this only affects 8.0 x and 8.1x
.k-chart-tooltip { color: black; }