Goodness! And you would re-write history?
Toxic thought!
No, go back in history.
The original artist probably thought the work would be viewed in a well lit area, and was not thinking conservation lighting.
Plus, colors fade, smoke stains and other contamination change the vision.
Even today, our plum exterior trim turns to red in California.
Yes, look at Whistler's "Arrangement in Grey and Black, No. 2"; it is in need of a good cleaning. The greys and blacks are obviously covered with a yellowed coating, probably a lacquered overcoat from some previous attempt at conservation using poor, little understood techniques of an earlier period which have yellowed with age. Compare it with the well cared for Whistler's "Arrangement" and see the difference.
**Plus, colors fade, smoke stains and other contamination change the vision.**
I reject your *vision*...and your right to do so. You can do whatever you want, it obviously pleases you, since you know better.
Meh.