Sakurai had earlier announced that the black lines surrounding the characters on the 3DS version could be removed. Today we saw what that would look like, along with a statement from Sakurai.
"Here's a comparison of characters with and without their outlines on the 3DS version. The also give off a different impression in 3D, so customize the look however you like."
The outlines are meant to make it easier to follow your character while playing on the smaller screen of the 3DS. When Sakurai originally announced that the lines could be turned off, many fans speculated it might not look too clean. However the line removal makes the characters look quite impressive, especially considering this is a 3DS game.
Obviously it is impossible to know how things will look while the game is in motion and if the outlines will really make following the gameplay easier. For now though it is certainly nice to have the choice to switch between the two features.
Another added bonus about this picture of the day is that it shows what the Player 1 and Player 2 icons will look like on the 3DS. A very simple thing, but it's always interesting to see how the game will come together in every aspect.