2025 update -> https://github.com/cinight/PSBlendModes
Note: this page only contains workaround for Builtin-RP and URP in 2019.3 LTS version. Go to above link if you need better explanations and workaround codes for URP in 2022.3 LTS and U6.
Having this problem?
https://forum.unity.com/threads/gamma-colors-for-ui-and-linear-for-scene.529923/
Looking for a way to make only the UI matches to what is designed in Photoshop? Don’t want artists to change any workflow(possible solution for artists please refer to this comment) because you are in the middle of development? Try this.
Ming Wai Chan 