They wore standard British Line uniform with gold/yellow facings (Haythornthwaite, 1995). See Haythornthwaite, fig 16a for painting details. Roll Dillon’s Provisional Battalion

a b c d e f g h i j k "Cavalry Lineage Chart [UK]". 2007-10-16. Archived from the original on 2007-10-16 . Retrieved 2021-02-22. British uniforms are less well documented and a little less formula driven; facing colours, lacing shape and braiding colour. There was also a great deal of detail changes to uniforms (Hussar shakos being a prime example).I'll have a search as well, just because someone does lots of books, doe not mean they are reliable Don't trust these old books which are based on old research and old libraries. They are a good start but need confirmed with newer research

Barnes, R.M.. (1972). A History of the Regiments & Uniforms of the British Army. First Sphere Books. pp.220–221. Troopers of the King's Troop, Royal Horse Artillery in their blue light cavalry-style full dress uniform Kannik, Preben (1968), Military Uniforms of the World in Colour, Blandford Press Ltd, ISBN 0-71370482-9 (p. 245)

Roll Dillon’s Provisional Battalion comprised three companies of de Roll’s regiment and five of Dillon’s (Haythornthwaite, 1995). Chasseurs Britanniques Light Dragoons, 26th Hussars [UK]". 2007-10-13. Archived from the original on 2007-10-13 . Retrieved 2021-02-22. Green: Adjutant General's Corps (except Royal Military Police, who wear scarlet; Military Provost Staff, Educational and Training Services Branch and Army Legal Service, who wear navy blue), Military Provost Guard Service The Queen's Lancers [UK]". 2007-10-24. Archived from the original on 2007-10-24 . Retrieved 2021-02-22.

Undress: Blue cloth coat, blue lappels and round cuffs, fall down blue collar; waistcoat and breeches of white or blue cloth as may be convenient. The buttons worn by the masters to bear the arms of the Navy Office, and by the pursers those of the Victualling Office... Warrant officersBritish Army No.8 Combat Dress (Royal Yorkshire Regiment) A British soldier, left, of the Queen's Royal Hussars wearing a Tent Hat with No.8 Dress. Smith, Peter C. (1988). The Royal Marines. A Pictorial History 1664-1987. Spellmount Publishers. ISBN 0-946771-32-4.

When the 79th Cameron Highlanders were raised it was decided to use a new design instead of the red-based Cameron tartan ( Wikipedia: Queen’s Own Cameron Highlanders). The Cameron of Erracht tartan was based on the Macdonald sett with the addition of a yellow line from the Cameron tartan, and the omission of three red lines found in that of Macdonald. The Napoleonic Wars came to an end in 1815; the list below shows the units which converted or changed from 1815 to 1820/21, as these were the last major changes until the Cardwell Reforms of 1874 and later the Childers Reforms of 1881. [2] Converted to Lancers [ edit ] The line formation was the most favoured, as it offered the maximum firepower, about 1000 to 1500 bullets per minute. [16] Though the manual laid down that lines were to be formed in three ranks, the lines were often formed only two ranks deep, especially in the Peninsula. While the French favoured column formation, the line formation enabled all muskets available to fire at the enemy. In contrast, only the few soldiers in the first rows of the column (about 60) were able to fire. [17] British infantry were far better trained in musketry than most armies on the continent (30 rounds per man in training for example, compared with only 10 in the Austrian Army) and their volleys were notably steady and effective.Royal Lancers (Prince of Wales's) [UK]". 2007-10-23. Archived from the original on 2007-10-23 . Retrieved 2021-02-22.