Ephemeral Radiance

Okay, so maybe Magic was just a Purple Gem originally, and not a Purple STAR Gem? Again, very confused. So Magic - Purple Gem or Purple STAR Gem? Generosity - Green Gem or Indigo Gem? Book's Illustration Celestia using Elements (Note there is no green gem here) So, my question remains. Animation / Illustration error or intentional?

I guess this is more of a question than an opinion, so if this section isn't where it belongs, my apologies. It's about Element colors. So, in the book in the S1 opening, the Elements are depicted as being a Purple Star Gem, a Red Gem, an Orange Gem, a Green Gem, a Pink Gem, and a Light Blue Gem But in S4 E1 and 2, in Twilight's flashbacks, there is no Green Gem. Instead, there's an Indigo looking one. And it seems by color, before they changed shape when wielded by the Mane 6 Purple = Magic Orange = Honesty Light Blue = Laughter Red = Loyalty Pink = Kindness So I guess the last one is Generosity, but was it supposed to be Green, or Indigo? It seems to only be Green in the book, in all other instances, it would appear to be the Indigo one. So is this an animation error or did the Element change color somehow? Or am I just overthinking this?