Derma List Background Color/Transparency

[Cman3144]

Is there a way to change the Derma List background color? I'd actually like to make it partially transparent due to the fact I have a image under it.
Here is a copy of my code relating to the list if it helps. It's just a list of all players.
local PlayerList = vgui.Create( "DListView", frame )
PlayerList:SetSize( 200, 500)
PlayerList:SetPos(20, 50)
PlayerList:SetMultiSelect( false )
PlayerList:AddColumn( "Players" )
for k, v in pairs(player.GetAll()) do
PlayerList:AddLine(v:Nick())
end

[MrRalgoman]

Panel/SetAlpha

[Cman3144]

Well I did spend time browsing the wiki before I came here. I was mainly focused on the Inherited functions. But anyways I was just wanting the background to become transparent, this makes everything even the text become more transparent. Any ideas?

[Spar]

Use Paint function for DFrame and draw your own background