Imagine this situation: You have received a screenshot of an animated glitter text as a raster image, and been asked to change the text, enlarge the image to prepare for print and apply the same fill effect (let me refer to it as pixel glitter).
You have converted it to vector to create the new, bigger text and you are ready to get the fill. But then you notice that your glitter has turned into thousands of paths with 3k colours (each one for each pixel)! Is there a way to grab this effect from the original raster image, and apply it as a fill to the vector objects in the bigger one?
Any tips, links, tutorials and ideas are welcome! Please share your suggestions, especially if this question looks really super simple to you (I'm a self-taught graphic designer and new here, so I ask you for your understanding). Thank you!
EDIT: Here are the parts of the files, with description of what I mean (thank you Rafael for your suggestion!)