function GM:ForceDermaSkin()
	return "zombiesurvival"
end

local SKIN = {}

SKIN.PrintName = "Zombie Survival Derma Skin"
SKIN.Author = "William \"JetBoom\" Moodhe"
SKIN.DermaVersion = 1

SKIN.bg_color = Color(50, 50, 50, 255)
SKIN.bg_color_sleep = Color(40, 40, 40, 255)
SKIN.bg_color_dark = Color(30, 30, 30, 255)
SKIN.bg_color_bright = Color(80, 80, 80, 255)

SKIN.Colors = {}
SKIN.Colors.Panel = {}
SKIN.Colors.Panel.Normal = Color(50, 50, 50, 120)

function SKIN:PaintPanel(panel, w, h)
	if not panel.m_bBackground then return end

	surface.SetDrawColor(self.Colors.Panel.Normal)
	surface.DrawRect(0, 0, w, h)
end

--SKIN.tooltip = Color(190, 190, 190, 230)

local color_frame_background = Color(0, 0, 0, 220)
SKIN.color_frame_background = color_frame_background
SKIN.color_frame_border = Color(0, 80, 0, 255)

SKIN.colTextEntryText = Color(200, 200, 200)
SKIN.colTextEntryTextHighlight = Color(30, 255, 0)
SKIN.colTextEntryTextBorder = Color(70, 90, 70, 255)

SKIN.colPropertySheet = Color(30, 30, 30, 255)
SKIN.colTab = SKIN.colPropertySheet
SKIN.colTabInactive = Color(25, 25, 25, 155)
SKIN.colTabShadow = Color(20, 30, 20, 255)
SKIN.colTabText	= Color(240, 255, 240, 255)
SKIN.colTabTextInactive	= Color(240, 255, 240, 120)

--[[SKIN.colTextEntryBG	= Color( 240, 240, 240, 255 )
SKIN.colTextEntryBorder	= Color( 20, 20, 20, 255 )
SKIN.colTextEntryText = Color( 20, 20, 20, 255 )
SKIN.colTextEntryTextHighlight = Color( 20, 200, 250, 255 )
SKIN.colTextEntryTextCursor	= Color( 0, 0, 100, 255 )]]

function SKIN:PaintPropertySheet(panel, w, h)
	local ActiveTab = panel:GetActiveTab()
	if ActiveTab then Offset = ActiveTab:GetTall() - 8 end

	draw.RoundedBox(8, 0, 0, w, h, self.colTab)
end

function SKIN:PaintTab(panel, w, h)
	if panel:GetPropertySheet():GetActiveTab() == panel then
		return self:PaintActiveTab(panel, w, h)
	end

	draw.RoundedBox(8, 0, 0, w, h, self.colTabInactive)
end

function SKIN:PaintActiveTab(panel, w, h)
	draw.RoundedBox(8, 0, 0, w, h, self.colTab)
end

--[[SKIN.color_textentry_background = Color(40, 40, 40, 255)
SKIN.color_textentry_border = Color(70, 90, 70, 255)]]

local texCorner = surface.GetTextureID("zombiesurvival/circlegradient")
local texUpEdge = surface.GetTextureID("gui/gradient_up")
local texDownEdge = surface.GetTextureID("gui/gradient_down")
local texRightEdge = surface.GetTextureID("gui/gradient")
function PaintGenericFrame(panel, x, y, wid, hei, edgesize)
	edgesize = edgesize or math.ceil(math.min(hei * 0.1, math.min(16, wid * 0.1)))
	local hedgesize = edgesize * 0.5
	DisableClipping(true)
	surface.DrawRect(x, y, wid, hei)
	surface.SetTexture(texUpEdge)
	surface.DrawTexturedRect(x, y - edgesize, wid, edgesize)
	surface.SetTexture(texDownEdge)
	surface.DrawTexturedRect(x, y + hei, wid, edgesize)
	surface.SetTexture(texRightEdge)
	surface.DrawTexturedRect(wid, y, edgesize, hei)
	surface.DrawTexturedRectRotated(x + hedgesize * -1, y + hei * 0.5, edgesize, hei, 180)
	surface.SetTexture(texCorner)
	surface.DrawTexturedRect(x - edgesize, y - edgesize, edgesize, edgesize)
	surface.DrawTexturedRectRotated(x + wid + hedgesize, y - hedgesize, edgesize, edgesize, 270)
	surface.DrawTexturedRectRotated(x + wid + hedgesize, y + hei + hedgesize, edgesize, edgesize, 180)
	surface.DrawTexturedRectRotated(x - hedgesize, y + hei + hedgesize, edgesize, edgesize, 90)
	DisableClipping(false)
end

function SKIN:PaintFrame(panel, w, h)
	surface.SetDrawColor(panel.ColorOverride or color_frame_background)
	PaintGenericFrame(panel, 0, 0, w, h)
end

--[[function SKIN:DrawBorder(x, y, w, h, border)
	surface.SetDrawColor(border)
	surface.DrawOutlinedRect(x, y, w, h)
	surface.SetDrawColor(border.r * 0.75, border.g * 0.75, border.b * 0.5, border.a)
	surface.DrawOutlinedRect(x + 1, y + 1, w - 2, h - 2)
	surface.SetDrawColor(border.r * 0.5, border.g * 0.5, border.b * 0.5, border.a)
	surface.DrawOutlinedRect(x + 2, y + 2, w - 4, h - 4)
end

function SKIN:PaintTooltip(panel)
	local w, h = panel:GetSize()

	DisableClipping(true)

	self:DrawGenericBackground(0, 0, w, h, self.tooltip)
	panel:DrawArrow(0, 0)

	DisableClipping(false)
end

function SKIN:PaintButton(panel)
	local w, h = panel:GetSize()

	if panel.m_bBackground then
		local col = self.control_color
		if panel:GetDisabled() then
			col = self.control_color_dark
		elseif panel.Depressed then
			col = self.control_color_active
		elseif panel.Hovered then
			col = self.control_color_highlight
		end

		draw.RoundedBox(8, 0, 0, w, h, col)
	end
end]]

SKIN.Colours = {}

SKIN.Colours.Window = {}
SKIN.Colours.Window.TitleActive			= GWEN.TextureColor( 4 + 8 * 0, 508 );
SKIN.Colours.Window.TitleInactive		= GWEN.TextureColor( 4 + 8 * 1, 508 );

SKIN.Colours.Button = {}
SKIN.Colours.Button.Normal				= Color(200, 200, 200, 220)
SKIN.Colours.Button.Hover				= Color(255, 255, 255, 220)
SKIN.Colours.Button.Down				= Color(255, 255, 255, 255)
SKIN.Colours.Button.Disabled			= Color(160, 160, 160, 220)

SKIN.Colours.Tab = {}
SKIN.Colours.Tab.Active = {}
SKIN.Colours.Tab.Active.Normal			= GWEN.TextureColor( 4 + 8 * 4, 508 );
SKIN.Colours.Tab.Active.Hover			= GWEN.TextureColor( 4 + 8 * 5, 508 );
SKIN.Colours.Tab.Active.Down			= GWEN.TextureColor( 4 + 8 * 4, 500 );
SKIN.Colours.Tab.Active.Disabled		= GWEN.TextureColor( 4 + 8 * 5, 500 );

SKIN.Colours.Tab.Inactive = {}
SKIN.Colours.Tab.Inactive.Normal		= GWEN.TextureColor( 4 + 8 * 6, 508 );
SKIN.Colours.Tab.Inactive.Hover			= GWEN.TextureColor( 4 + 8 * 7, 508 );
SKIN.Colours.Tab.Inactive.Down			= GWEN.TextureColor( 4 + 8 * 6, 500 );
SKIN.Colours.Tab.Inactive.Disabled		= GWEN.TextureColor( 4 + 8 * 7, 500 );

SKIN.Colours.Label = {}
SKIN.Colours.Label.Default				= GWEN.TextureColor( 4 + 8 * 8, 508 );
SKIN.Colours.Label.Bright				= GWEN.TextureColor( 4 + 8 * 9, 508 );
SKIN.Colours.Label.Dark					= GWEN.TextureColor( 4 + 8 * 8, 500 );
SKIN.Colours.Label.Highlight			= GWEN.TextureColor( 4 + 8 * 9, 500 );

SKIN.Colours.Tree = {}
SKIN.Colours.Tree.Lines					= GWEN.TextureColor( 4 + 8 * 10, 508 );		---- !!!
SKIN.Colours.Tree.Normal				= GWEN.TextureColor( 4 + 8 * 11, 508 );
SKIN.Colours.Tree.Hover					= GWEN.TextureColor( 4 + 8 * 10, 500 );
SKIN.Colours.Tree.Selected				= GWEN.TextureColor( 4 + 8 * 11, 500 );

SKIN.Colours.Properties = {}
SKIN.Colours.Properties.Line_Normal			= GWEN.TextureColor( 4 + 8 * 12, 508 );
SKIN.Colours.Properties.Line_Selected		= GWEN.TextureColor( 4 + 8 * 13, 508 );
SKIN.Colours.Properties.Line_Hover			= GWEN.TextureColor( 4 + 8 * 12, 500 );
SKIN.Colours.Properties.Title				= GWEN.TextureColor( 4 + 8 * 13, 500 );
SKIN.Colours.Properties.Column_Normal		= GWEN.TextureColor( 4 + 8 * 14, 508 );
SKIN.Colours.Properties.Column_Selected		= GWEN.TextureColor( 4 + 8 * 15, 508 );
SKIN.Colours.Properties.Column_Hover		= GWEN.TextureColor( 4 + 8 * 14, 500 );
SKIN.Colours.Properties.Border				= GWEN.TextureColor( 4 + 8 * 15, 500 );
SKIN.Colours.Properties.Label_Normal		= GWEN.TextureColor( 4 + 8 * 16, 508 );
SKIN.Colours.Properties.Label_Selected		= GWEN.TextureColor( 4 + 8 * 17, 508 );
SKIN.Colours.Properties.Label_Hover			= GWEN.TextureColor( 4 + 8 * 16, 500 );

SKIN.Colours.Category = {}
SKIN.Colours.Category.Header				= GWEN.TextureColor( 4 + 8 * 18, 500 );
SKIN.Colours.Category.Header_Closed			= GWEN.TextureColor( 4 + 8 * 19, 500 );
SKIN.Colours.Category.Line = {}
SKIN.Colours.Category.Line.Text				= GWEN.TextureColor( 4 + 8 * 20, 508 );
SKIN.Colours.Category.Line.Text_Hover		= GWEN.TextureColor( 4 + 8 * 21, 508 );
SKIN.Colours.Category.Line.Text_Selected	= GWEN.TextureColor( 4 + 8 * 20, 500 );
SKIN.Colours.Category.Line.Button			= GWEN.TextureColor( 4 + 8 * 21, 500 );
SKIN.Colours.Category.Line.Button_Hover		= GWEN.TextureColor( 4 + 8 * 22, 508 );
SKIN.Colours.Category.Line.Button_Selected	= GWEN.TextureColor( 4 + 8 * 23, 508 );
SKIN.Colours.Category.LineAlt = {}
SKIN.Colours.Category.LineAlt.Text				= GWEN.TextureColor( 4 + 8 * 22, 500 );
SKIN.Colours.Category.LineAlt.Text_Hover		= GWEN.TextureColor( 4 + 8 * 23, 500 );
SKIN.Colours.Category.LineAlt.Text_Selected		= GWEN.TextureColor( 4 + 8 * 24, 508 );
SKIN.Colours.Category.LineAlt.Button			= GWEN.TextureColor( 4 + 8 * 25, 508 );
SKIN.Colours.Category.LineAlt.Button_Hover		= GWEN.TextureColor( 4 + 8 * 24, 500 );
SKIN.Colours.Category.LineAlt.Button_Selected	= GWEN.TextureColor( 4 + 8 * 25, 500 );

SKIN.Colours.TooltipText	= GWEN.TextureColor( 4 + 8 * 26, 500 );

function SKIN:PaintButton(panel, w, h)
	if not panel.m_bBackground then return end

	local col

	if panel:GetDisabled() then
		col = Color(5, 5, 5, 90)
	elseif panel.Depressed or panel:IsSelected() or panel:GetToggle() then
		col = Color(60, 70, 100, 160)
	elseif panel.Hovered then
		col = Color(45, 45, 80, 160)
	else
		col = Color(32, 32, 35, 160)
	end

	local edgesize = math.min(math.ceil(w * 0.2), 24)
	surface.SetDrawColor(col)
	surface.DrawRect(edgesize, 0, w - edgesize * 2, h)
	surface.SetTexture(texRightEdge)
	surface.DrawTexturedRect(w - edgesize, 0, edgesize, h)
	surface.DrawTexturedRectRotated(math.ceil(edgesize * 0.5), math.ceil(h * 0.5), edgesize, h, 180)
end

function SKIN:PaintComboDownArrowClassSel(panel, w, h)
	local y = math.sin(UnPredictedCurTime() * 3) * 5 * (w/15) - 1

	if panel.ComboBox:GetDisabled() then
		return self.tex.Input.ComboBox.Button.Disabled(0, 0, w, h)
	end

	if panel.ComboBox.Depressed or panel.ComboBox:IsMenuOpen() then
		return self.tex.Input.Slider.H.Down(0, y, w, h)
	end

	if panel.ComboBox.Hovered then
		return self.tex.Input.Slider.H.Hover(0, y, w, h)
	end

	self.tex.Input.Slider.H.Normal(0, y, w, h)
end

derma.DefineSkin("zombiesurvival", "The default Derma skin for Zombie Survival", SKIN, "Default")