Using Illustrator's Tracing tool, you can create a vector edition of a pixelated image, enlarge it and thereby smooth out the grainy ... Choosing "low color," for example, will remove color ...

But octopuses' most awe-inspiring trait is arguably their ability to rapidly change color and blend into their ... making the skin smooth like seaweed, or contracted, making the skin lumpy and ...

You don't have to keep the stock colors of Canva's media; here are the different ways to change ... there's no color palette when selected, then it's a raster image rather than a vector graphic.