If you are not happy with iRacing original yellow color. There is a way to get colors almost like in real life without using nvidia experience or reshade. Go to Nvidia Control Panel, Adjust colors, Use Digital Vibrance and lower it down to a desired level, Click Apply and test it in game. Try it and see if you like it. A Sample screenshot here. In addition, Use iRacing Brightness and Gamma settings in Graphics options.
What do you mean exactly? Once you adjust color Digital Vibrance in nvidia control panel it will stay that way until you change it whenever you want.
Hm i use the Nvidia tool. Its just so easy and works without any issues. I don't like fiddling with the control panel
Mine has stopped working. Every time I try to enter the options for filters it says I have to restart the game. It worked fine a few weeks ago. All on latest Nvidia software. Weird.
When using Nvidia experience filters, it never works on the first opening. You must restart the game every f@king time, so annoying! Luckily someone showed me the easiest and the simplest way. Do it once, and don't have to touch it again. It works well for almost all games if you wish to reduce exaggerated colors.