fix(doc): add existing indigo to the colors list (#1226)
fix(doc): add existing indigo to the colors list (#1226)

Co-authored-by: Julien Déramond <85f14dde02ac1aa73d4e2d3b06d86d1794b6488c@orange.com>
Orange-OpenSource/Orange-Boosted-Bootstrap,Orange-OpenSource/Orange-Boosted-Bootstrap