Yeah normally there is the word "Dallara" in white on the yellow background. Probably got deleted when this modified template was created . You can download the original template and copy over the logo manually if you like (I did, my OCD went crazy over it )
http://www.racedepartment.com/downloads/indy-car-dw12-paint-template.2324/
I did smile when I saw this! I was doing a skin for the Enduracer Lola Mazda. I just couldn't live with the lo-res Lola logo on the nose, glad I'm not the only one with logo perfection issues....!