Thanks Tzoop! I used the pallete from Megaman V, which I thought would be a nice change to the greenish looking default one.
As for the blocks, that seems to be an issue with the Pixel Perfect Camera in Unity 2018.2 - I actually entered the jam to try it out. It's still in beta, so the blocks get blurry when exported (and WebGL doesn't even run). I might fix that in the future when I get some free time! :)