Clan Stewart dicing?

[OC Richard]

I was looking over the Wiki article about Clan Stewart and what immediately struck me was the distinctive St Andrews Blue and white dice pattern that appears on the arms of numerous Stewart branches:

https://en.wikipedia.org/wiki/Clan_Stewart

Here, for example, are the arms of Stewart of Appin:



The moment I saw these arms, the dicing jumped out to me, because I've seen it so many times before, the dicing pattern on St Andrews Blue/Royal Blue Balmoral bonnets:



It strikes the eye more on Navy Blue bonnets, as with this Glengarry:



Here is such a bonnet being worn, a Navy Blue Balmoral with St Andrews Blue dicing from a 1930s catalogue:



This got me to wondering if members of Clan Stewart have likewise noticed this, and do they favour bonnets with this dicing?

I have Stewart ancestors myself and I do like that pattern.