In the content pages, you can change the logo image by replacing the image file below:

\\program files\deepnet dualshield\tomcat\dpsapp\images\new_logo.png

and you can also change the labels, menu and messages by customising the content of the file below:

\\program files\deepnet dualshield\tomcat\dpsapp\dps\web-inf\grails-app\i18n\messages.properties