You don't seem to understand the question *access was asking. He wanted to know if this is the first we've seen Sanji with Diable Jambe on both legs. Diable Jambe is when Sanji's leg turns red and ignites. Your picture showed Sanji doing Spectre but it didn't show Diable Jambe on both legs. Chapter 724 however clearly showed Jambe on both legs several times.
Chopper should develop a medicine for your brain issue.