CSS Grid support and additional properties

[dschmidthawk]

Describe the bug
Display grid not showing under Display properties. Other grid properties should be shown as well, e.g., background color, order.

To Reproduce
Open style.css, toggle on Fabulous, and place cursor into either css rule:

#test.parent {
display: grid;
grid-template-columns: 1fr 1fr 1fr 1fr 1fr;
grid-template-rows: 1fr 1fr 1fr 1fr 1fr;
grid-column-gap: 10px;
grid-row-gap: 10px;
}

<...>

.div3 {
grid-area: 1 / 1 / 4 / 5;
background: red;
height: 50vh;
order: 2;
}

Expected behavior
Under Display, should find Grid next to or before Flex. Background properties & additional grid properties should display such as color, order, etc.

Additional context