Color filter, meaning the sort of blue-ish color in the daytime lighting? You can modify the time of day files to produce different results, although I don't know of any published mods that do so. I have a customized "Classic" TOD with more neutral lighting that you can try, if you want. Screenshots of the TODs shipped with the game are in
this thread, and not all of them are accessible by default. The customized one I'm attaching here is "day_tod_override, tweaked", renamed to take the place of "Classic" in the game menu. Actually, I may have turned the fog back on, just a little bit.
Even if you're already using "Classic", after putting the file in, you have to go back to the ship and choose the classic TOD again (maybe switch off of it and then back to it), because if you don't, the game will have a mixture of the new and old versions. It's weird. Some aspect of the TOD seems to be saved in your save file.