How do I add a rainbow 'filter' to a GIF (i.e color changing)?
I have recently been tasked with creating a rainbow Pokemon GIF but the most I can do is change the colour once. I tried looking online and did find some websites that added a rainbow filter : https://cdn.discordapp.com/attachments/399654990026899477/406751658807132160/Rainbow_Arceus.gif - This link is a rainbow gif that I was able to make the color change but it's not as clean as I would like it to be and was wondering if anyone knew how to do this in photoshop or at least another software that could help in what I'm trying to accomplish. {This video shows a Pokemon GIF that I would like to be able to re-create (ignore that background, that was added afterwards but that rainbow effect is what I'm trying to achieve)}Gyazo - a7804d1c4f46dd6a373d9ac1fa78b4d9.gif