I have never seen Mt Fuji colored red.
I'm sure that Mt Fusi like this graphic making pressed flower.
Kuppy make a japanese poem, TANKA for this Mt.fuji.
That japanese poem meaans
.
...... If we see Mt.Fuji from the interval of clouds
when the sun just sets in the evening,
Mt. Fuji is shining with red.
Chihiro
(It is available for OE version 6.0)