Food for thought
I think part of the theory behind it is this;
Its like anything else.... For years many parts in the auto world that were performance, luxury, or just anything custom or that was non OE was of a certain color. Usually bright colors for marketing purposes but some actually had a function that was often related to maintenance. Performance has for many years been associated with bright colors, lets face it! And customization has always been associated with
non-neutral colors (if you will).
This fact is not lost on the auto industries marketing sector.
Here is where I think you can take a few different paths....
1) you always had posers.... People who would paint their stock calipers red to imply performance and hang a **** can off their stock Civic.
Now they can buy it that way (minus the **** can) as they are older (therefore they are over the **** can) and can maybe afford to, they still cant customize a vehicle, but they can buy it that way.
2)You have people who want the performance or customization (implied or real) from an OE level, purists. Meaning original performance or quality.
3)You have people who just want to go against the grain in their minds, or maybe be creative and have something that is not the same as every other cookie on the road that was cut from the same appliance mold. They want something unique that maybe matches their character or style.
4) This plays a part in #2 as well, sometimes these odd colored interior materials and textiles are that color naturally. Meaning it is an otherwise exotic material and it bears its Organic color and texture, which is how the higher end or unique materials can be identified. This is more of a perception of class and or craftsmanship than anything. I think the same can go for the other end of the spectrum, sportier vehicles or offroad vehicles. Technology allows us to now use different types of materials and processing methods that allow us to utilize better or custom materials where they are beneficial.
I think a lot of perspectives could be added to this along those same lines, per whatever the material or component is.
In the end I think it comes down to two types of people, those who want to look of a certain status or a certain way, and those who want achieve it. Meaning they truly want an OEM level of craftsmanship, luxury or performance. I for one, I want to enjoy the space that I am utilizing for whatever that means based on the application.
I guess if I drove a TESLA or PRIUS I would maybe do custom cork throughout, hemp-canvas for seat covers, bamboo, with recycled TP for floor mats throughout!

