Color( ... ) to color where possible and similar things

Hopefully nothing broke in the process

Author: robotboy655

garrysmod/gamemodes/base/entities/effects/dof_node.lua

@@ -50,6 +50,6 @@ function EFFECT:Render()
 	local SpriteSize = ( self.spacing + self.offset ) * 8
 
 	render.SetMaterial( self.Mat )
-	render.DrawSprite( self:GetPos(), SpriteSize, SpriteSize, Color( 255, 255, 255 ) )
+	render.DrawSprite( self:GetPos(), SpriteSize, SpriteSize, color_white )
 
 end

garrysmod/gamemodes/base/entities/effects/tooltracer.lua

@@ -45,7 +45,7 @@ function EFFECT:Render()
 					8,								-- Width
 					texcoord,						-- Start tex coord
 					texcoord + self.Length / 128,	-- End tex coord
-					Color( 255, 255, 255 ) )		-- Color (optional)
+					color_white )		-- Color (optional)
 	end
 
 	render.DrawBeam( self.StartPos,