Question:
Is there any chance you can change the colour of the "New Ticket" button which is currently green?
Answer:
You would have to use CSS for that. The code for changing the New ticket button color to white would be as follows:
#divBigHeader #newTicket a.button {
background-color: #FFFFFF !important; // replace #FFFFFF with your color if needed
}
Insert the CSS on the Administration > General settings page, in the Advanced CSS & JS area.