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How would you go about making these fluid/mesh gradients?
(i.postimg.cc)
Notice how these ones partially conform to their container too.
I'm super late but if anyone is also looking for an answer, gradient mesh in illustrator could do the trick : https://blog.adobe.com/en/publish/2017/08/24/create-abstract-gradient-graphics-with-the-mesh-tool-in-adobe-illustrator