TTT Help with flashing names.

[NineteenKilo]

I'm trying to get a script for flashing names for admins to work on my ttt server, but I keep getting error.
I saw this on another thread and I was trying to emulate it but they didn't finish explaining how it was fixed, so I'm posting my code here to see if anyone can help.

hook.Add( "Think", "scoreboardcolors", function()
local glow = math.abs(math.sin(CurTime() * 2) * 255); -- Math stuff for flashing.
    local flashingRed = Color(glow, 0, 0, 255); -- This flashes red.
    local flashingGreen = Color(0, glow, 0); -- This flashes green.
    local flashingBlue = Color(0, 0, glow); -- This flashes blue.


local namecolor = {
   default = COLOR_WHITE,
   admin = Color(220, 170, 0, 255),
   dev = flashingRed
};

function GM:TTTScoreboardColorForPlayer(ply)
   if not IsValid(ply) then return namecolor.default end

   if ply:SteamID() == "STEAM_0:0:26639286" then
      return namecolor.dev
   elseif ply:IsAdmin() and GetGlobalBool("ttt_highlight_admins", true) then
      return namecolor.admin
   end
   return namecolor.default
end
end )

I'll get an error like "TTTScoreboardColorForPlayer hook returned something that isn't a color!"
Anyone know why this is happening?

[Nalo]

[lua]
local flashingRed = Color(0,0,0)
hook.Add("Think", "scoreboardcolors", function()
local glow = math.abs(math.sin(CurTime() * 2) * 255);
flashingRed = Color(glow, 0, 0, 255)
end)
hook.Add("TTTScoreboardColorForPlayer", "ScoreboardColors", function(ply)
if IsValid(ply) and ply:SteamID() == "STEAM_0:0:26639286" then
return flashingRed
end
end)
[/lua]