>>/127/
I only visualised in my head what it would look like. It's been applied on /desktops and there are two clear errors.

First:
th {
background-color: #100000!important
}

Second:
.innerPost, .markedPost {
background-color: #000000;
border-style: solid;
border-color: #FFAA00!important

#quick-reply table {
background: #000000 none repeat scroll 0% 0%;
border-style: none solid solid solid;
border-color: #FFAA00
}

.contentAction {
background-color: #000000;
border-style: solid;
border-color: #FFAA00
}

.catalogCell {
background-color: #000000;
border-color: #FFAA00
}