The project took a complicated turn because some of the stakeholders wanted the chapel to look like a serious chapel while others wanted it to look "original".
The "original" camp prevailed but it was an uphill battle.
"Before the Reformation, English churches were typically ornate and richly decorated," [1]
So it's a surprise to me that anyone would believe that an old chapel in the south of France would necessarily be austere and plain, I would expect rather the opposite. And there are plenty of modern churches in Catholic countries that are very richly decorated today.
[1] https://www.tutorchase.com/answers/a-level/history/how-did-t...
IIRC the project started in a very amateurish way. The area had been steadily declining for decades and at some point the locals created a bunch of non-profits to finance small projects like that one in the hope of making the place more attractive. All without much help from central authorities.
The chapel restoration involved students, amateur artists, etc. with no particular knowledge of the subject. The Church wasn't involved either at the start because the building had been abandoned for over a century and no one cared.
So the initial plan was to make it look like other chapels in the area: rustic, mineral, austere.
The project went sideways when they discovered those pigment traces all over the place. Regional museums and universities got involved, local government took notice, and the Church weighted in as well. At that point, it became obvious to anyone that, indeed, those places had been brightly painted from the start. But the general art direction had taken a turn for the austere a long time ago and there were a lot of people who liked things that way because… that's what they were used to.
https://en.m.wikipedia.org/wiki/Restoration_of_the_Sistine_C...
:s/roof/ceilingIn his opinion, the choice of colors was a consequence of poor light conditions inside ancient building. Not just because at night you had only oil lamps or similar sources, but because glass windows were not available either, so wall openings were smaller, and ofter protected by blinds or paper screens to mitigate the humid warm climate.
I suppose same applies to ancient buildings in other parts of the world, too.
My nephew's plastic toys disagree, as do my sister-in-laws clothes. Also, Barbie.
[Edit] This was a bit tongue-in-cheek but I think the point stands. There is massive diversity about what colours and colour combinations are acceptable in different contexts and to different groups of people. I would agree that is currently a trend for grey furnishings in domestic contexts but society as a whole has never had a wider range of colours on show, I suspect, certainly if you consider all the new possibilities delivered by screens.
But even there tastes are shifting: saturated colors are now associated with cheap plastic (despite brightly colored toys far predating cheap plastic). If you want to signal quality you have to show natural wood grain (only light wood colors though) or gunmetal grey.
The range of colors has certainly increased. But we use the extreme colors in much more moderation, and even the use of colors overall is on a decreasing trend. Sure, there is still plenty of red, green and blue in energy drink cans. But on the other hand cars have lost all colors over the last couple decades. Home exteriors used to be painted in red or yellow tones in the 1930s but are predominantly white with black or gray accents now. Interior walls and furniture has become less colorful. And the counter-movements to making everything black and white make everything wood-colored and earth-toned, not colorful. And all of these examples are just about what happened in the timeframe from our grandparent's childhood until now. In the Middle Ages gaudy green chairs were fashionable.
or maybe it's just a temporary fashion change and we'll have a revival of bright pastel colors.
>pastel colors
https://duckduckgo.com/?t=ffab&q=honda+diffused+sky+blue&iax...