Ask a Western child to draw the sun and they will draw it yellow.
Ask a Japanese child to draw the sun and they will draw it red.
(The sun is actually white.)
The sun in A Sound of Taiyoo Organ is very similar to the sun as depicted in this Russian picture book.
It’s no coincidence really, since sunlight really does look different from there.
MADELINE IN LONDON BY LUDWIG BEMELMANS
Bemelmans is an interesting case, having grown up in Europe then emigrating to America as a young man. It’s safe to assume Bemelmans saw the sun through a number of different hazes. Generally, Bemelmans depicts the sun as yellow. For him, yellow is the ‘unmarked’ version. But he does something interesting with the sun in his picturebook Madeline In London — after the horse tragically eats all the gardener’s flowers, the flower-loving gardener gets out of bed, opens the door and sees a yellow sun in the shape of a flower greeting him. But once he realises his flowerbed has been destroyed, Bemelmans paints the sun as red. In other words, Bemelmans uses a red sun to signify a downward emotional turn.