Should I do anything else?

Last night we were at BIL & FSIL's for Thanksgiving. They are getting married in August. So of course I was asking questions what do have done yet, what else do you have to do. Still love to hear all the planning. Well BIL tells FSIL to show me the invitation they like but have not ordered yet. He tells me the online vendor they are using. It was the same vendor we used. So I start saying how great they were, helpful, everything ran smooth. She takes it out & it is the same exact invitation we used. I just kind of blurted out these are the same invitation we used. They did pick different colors then us. MIL then looks over & goes yup that is the same exact invitation they used in January. I felt so bad. FSIL mouth was almost hitting the floor, and BIL looked at her like uh oh I am in trouble. The thing is FSIL was not dating BIL when we got married, and was not at our wedding. She knows nothing about it really, she did see our pictures but that is it. So she picked it on her own. I said to BIL don't you remember what our invitation looked like? He says Oh well I didn't even open it. Thanks! So FSIL is standing there in shock still & you can tell upset. I tell her it is no big deal you should still use them, your using different colors. The only ppl who will know are IL's, us, and my parents. DH's family is small so everyone else coming will have no idea. FSIL just says they are the only place I could find the pink/orange. That are their wedding colors. Should I do anything else? I feel bad for FSIL, but it is really BIL's fault for being dense.

i think she will totally get over it. probably just the initial shock of it got to her a bit but she will be fine and you didnt do anything wrong

I think she will totally get over it. . and I think the color difference will totally be fine, plus it helps that so many of your guests will be different. . I see how it's tempting to try to do something else but it might just be worse. . . but sweet of you for trying!