Question Shaders in Stardew

[CrunchyDuck]

While working on a mod, I thought about how useful shaders would be for one of the effects I want to implment. It seems Stardew has nothing native to support shaders, and in my searching I could only find one mod that seemed to use them, Natural Color - Reshade.
Taking a cursory look at their files they're clearly injecting some code to get it to work, but it has a lot of issues it seems (Users seem to get confused, only works on Windows and even then has some issues).
Ideally, I'd want a system in Stardew that allows easy use of shaders for both modders and users, but I'm completely out of my depth in this.

What would be required to get shaders to work in Stardew? Is there anything I could read to learn about implementing shaders into games like Stardew?

 

[Wingheart]

I'd recommend checking out SpriteMaster - it applies a code-generated effect to all the visuals, so it's kind of a shader but instead of changing the colours or anything it changes from pixel-art to painterly style.