[BUG] to_threejs creates an int as a color which is unusual for Python

[bernhard-42]

Description

Currently material.vis.to_threejs()["color"] is an int
Typically in Python rgb colors are 3-tuples r,g,b with each value in [0,1] or css like strings '#bfbfc4'

Steps to Reproduce

import stainless
print(stainless.vis.to_threejs()["color"])
# 12566468

Expected Behavior

import stainless
print(stainless.vis.to_threejs()["color"])
# (0.7490196078431373, 0.7490196078431373, 0.7686274509803922) or "'#bfbfc4'"

Actual Behavior

see above

Environment

any

Additional Context

No response

Possible Solution

No response

Changelog Category

Fixed