Add (retro) shaders

[sne11ius]

Versions

ConEmu build: 161206 [32]
OS version: 10.0.17134.x64, Product: 1, SP: 0.0, Suite: 0x300, SM_SERVERR2: 0

Problem description

Yes, I admit. This is a feature request, and even a silly one. But please think about it.

Optional retro shaders (like in https://github.com/Swordfish90/cool-retro-term) would be great.
ConEmu does look great with configurable colors, fonts etc. But they can only get you so far.

Adding some form of shaders could be a great jump forward in terms of style.

[5k3105]

https://github.com/libretro/slang-shaders