Cancelled How would I make only a certain color change when changing it using the color picker in-game

I have this livery for one of my mods using the Sunburst body.
Using the color picker in-game, I would to only change the blue on the livery to a certain color that you can pick, atm using the color picker changes everything for some odd reason, even the white in the livery. Please help me for as I don't want a bunch of liveries with only 1 thing diffren't in my mod. Thanks
LINK TO MY MOD: https://www.beamng.com/resources/sreet-race-sunburst-v2-with-7-liveries.2888/

 

Here is a wiki page : https://wiki.beamng.com/Introduction_to_skin_system#Colorable_Skins_.28Advanced.29