My requirement is to create a colorful dashboard with custom colors or pictures.
Can anyone give me tips for the same ???
you should specify your requirements a little bit more but in general this will help :
You can customize colours in graphics modifiyng the palette of your graphics (http://docs.splunk.com/Documentation/Splunk/6.5.1/Viz/PanelreferenceforSimplifiedXML https://docs.splunk.com/Documentation/Splunk/6.5.1/Viz/Aboutthismanual ).
With Single values panels you can dinamically modify colour by the search results.
You can insert HTML panels with images and colours.
At the end you can modify the application.css and dashboard.css (https://docs.splunk.com/Documentation/Splunk/6.5.1/AdvancedDev/CustomVizTutorial ).
I suggest to download and installa the Splunk 6.x Dashboard Examples App (https://splunkbase.splunk.com/app/1603/) in whick are described examples of your needs.
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