Photoshop Tip: Improving Images With Gradient Filters - The Shutterstock Blog
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Adam Argyle on Twitter: "🎨 a 4 corner layered gradient by stacking 2 simple linear gradients and using a linear mask to blend them together! 1 red to cyan gradient 1 hotpink
gradient map filter - Openclipart
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How to Use the Gradient Filter to Improve Your Photos | Learn Photography by Zoner Photo Studio