Table hidden fields - cannot set their background color

[tomerikko]

Hey community,
i am trying to change the background of the items under the "+" sign on a tale.
i want their header to have a background color.

for the non-hidden fields, the header color can be set with New-HTMLTableStyle -Type Header -BackgroundColor <color>
But this does not effect the hidden fields.

any idea how this can be achived?

i toyed around with those 3 who didnt helped much on my issue.

New-HTMLTableStyle -Type Footer -BackgroundColor red 
New-HTMLTableStyle -Type Table -BackgroundColor Cyan
New-HTMLTableStyle -Type Content -BackgroundColor GoldenYellow

[PrzemyslawKlys]

I don't think it's possible mostly because the expanded rows basically are not tables but lists. I have played with it yesterday and it looks doable to add some sort of conditional functionality on it.