This is a simple image that changes screen color tint for enbs
is replacement for a file included in all ENBs 

TO USE JUST REPLACE THE ENBPALETTE.BMP in your main skyrim directory with the file from the downloads you want to try, renaming it to enbpalette.bmp


the files contain a package of variations of the image file enbpallete.bmp for you to pick and try the ones that interest you

i created the images in few minutes just runing a command so expect some of them will not look good , but you can try these optional colors if you are bored, making your skyrim look bluish, purple or green.

it is a really simple and easy change and you can find other palettes on the web 

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thanks to Boris Vorontsov for ENBs i wouldnt play skyrim without them.
http://enbdev.com/palette_en.htm
thanks to Bronze316 for Seasons of skyrim ENB