Do you want to make your X-Plane 11 look amazing? If yes xVision is what you are looking for.
xVision tool allows you to make adjustments (tweaks) to X-Plane shaders. It works with FlyWithLua plugin which can be downloaded for free from the X-Plane.org forums.
With several presets, xVision will give your simulator brand new fresh looks and overall feel. It may be for 22 € a bit pricey comparing to PTA for Prepar3D but in my opinion, xVision is definitely worth its price. xVision is FPS friendly and with Reshade makes a perfect pair.
If you are interested go check out xVision website for specific information.