How important is it that all the fonts and all the lettering and all the stationary and colors be the same? I found an invitation online that I really liked and thought I had an rsvp card in the same style but apparently that exact card is no longer available. There are others with similar fonts, etc, but not the same. I can get the same weight paper, but the color will also be different. Is this a major faux pas? Also, does this apply to photos too? (i.e.; if i use a photo on a STD do I have to use the same photo on the invitaion?) Thanks in advance for your response.