JF, since I cannot see a real name, has the recent furor caused by PLD research/ writings affected your painting/ units much?
With the sharing of actual cloth samples, I had been ‘restructuring’ my trumpetters as I rebuild units of my 25mm Minifigs. THEN I get his Guard Cavalry book and find that what I believed is untrue- that a dark yellow trim/ decoration was also used by both senior Guard regiments in addition to aurore!
However I think the biggest error being made in the English speaking world is assumption the bleu-de-ciel is just plain ‘sky blue’. Clearly to the French it is not!
So as above I feel comfortable with a darker colour now for ‘la garde’ trompettes and will field, using some customised figures, two refurbished regiments this year.