What's worked for me in the past with this kind of thing, is to use a setter outside the triggers eg.
There's two ways to do this, neither is particularly obvious. Since DataGridRow transfers (in code) the background property from the parent DataGrid to a local value in the row, as you noted it will take precedence over the value set by your trigger.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.