When importing images first came out, I had an idea for recolouring characters that I never ended up sharing/publishing so here it is
(that's some rather dodgy recolouring in Photoshop) but it is very quick! you can make your own colour palette and stuff.
and you know, you could even add extra features, like extra spikes on Dino, costumes (@CreationsOfaNoob did this idea using objects before importing images came, and @MagmaPOP used clones to do different effects on characters too and I believe different expressions also )
Colour everything black:
(again some dodgy skillz, but putting here for general idea) I filled in the black lines (just with a default brush)
How can I do this?
There are probably more ways, I just used Photoshop (magic wand tool to select areas, and paint bucket to colour in, and brush for the second silhouette).
I think there's an easier way that might allow you to change all pixels of one colour to another one, but not sure about how to do that (or if it exists, but I feel like i've stumbled across something like that before)
As for grabbing Dino in the first place, I made a project setting
Dino's size to 400, then took a screenshot and once opened on computer, made the background transparent.
I think Photoshop costs money but I do know that there are alternatives out there.
if others have already done this, that is awesome!! (show me them!) just making this as I remembered it (this was just on my own, but not labelling it as my idea or anything like that; just wanted to mention in case anyone has come up with this already, otherwise, this is a free public idea, no credit needed or anything)
also, these are Hopscotch's characters, so you can keep things in mind related to rights/usage, but this idea is just for using them informally in projects mostly
you are also very welcome to use the above assets (if you click on them, it should come up with the full size one)