Cloth backing patches in ABW

[RobD]

Dear All,
I understand that during the Anglo Boer War helmet and slouch hat badges were sometimes worn with a rectangle or diamond of a backing cloth. I read that for most units the backing colour was scarlet, with the RAMC badge being backed in dull cherry, and Scottish badges in tartan.
Is this info. correct? Did officers and other ranks all wear headgear badges?
The books I have tend to show a remarkable lack of unit insignia worn in the field.
I'd appreciate members posting any contemporary photos of headgear badges being worn during the ABW - many thanks!
Rob