Tests that colors are not re-formatted inside url(...) when editing property values.

"white" background
"url( white )" background
"url(white.png)" background
"url(../foo/white.png)" background
"green url(white)" background
"url(white) green" background
"url(white) green, url(green)" background
"url(white), url(green)" background
"hsl(0, 50%, 50%) url(white)" background
"url(white) hsl(0, 50%, 50%)" background
"url(../black/white.png)" background
rgb(255, 255, 255)
url( white )
url(white.png)
url(../foo/white.png)
rgb(0, 128, 0) url(white)
url(white) rgb(0, 128, 0)
url(white) green, url(green)
url(white), url(green)
rgb(191, 64, 64) url(white)
url(white) rgb(191, 64, 64)
url(../black/white.png)