Sweetfx/Reshade for DCS 1.5 in JSGME format.
change setting to your liking, as it's very subtle now.
Add to DCS 1.5 with JSGME.
Remember to change the settings file only when it's not activated (Mod to the left) only then activate it (move it to the right in JSGME).
DCS: World 1.5
Freeware - Free version, Unlimited distribution