UI: Unified Spec Color (TTT-2#1525)

Unified the usage of the new spec color in some places I could find.
There are probably more, but that's it for now. Fixes TTT-2#1481

CHANGELOG.md

@@ -52,6 +52,7 @@ All notable changes to TTT2 will be documented here. Inspired by [keep a changel
   - use `net.ReadPlayer` / `net.WritePlayer` if applicable instead of `net.Read|WriteEntity`
   - Reduced radar bit size for net message
   - The holdtype for pistol weapons now matches the viewmodel
+- Unified the spec color usage throughout the whole UI (by @TimGoll)
 
 ### Fixed
 

gamemodes/terrortown/gamemode/client/cl_voice.lua

@@ -179,7 +179,11 @@ end
 -- @return Color The color of the voice panel
 -- @realm client
 function VOICE.GetVoiceColor(ply)
-    if VOICE.GetVoiceMode(ply) == VOICE_MODE_GLOBAL then
+    local voiceMode = VOICE.GetVoiceMode(ply)
+
+    if voiceMode == VOICE_MODE_SPEC then
+        return COLOR_SPEC
+    elseif voiceMode == VOICE_MODE_GLOBAL then
         return INNOCENT.color
     else
         return TEAMS[ply:GetTeam()].color

gamemodes/terrortown/gamemode/client/vgui/cl_sb_main.lua

@@ -202,7 +202,7 @@ function PANEL:Init()
     self.ply_groups[GROUP_TERROR] = t
 
     t = vgui.Create("TTTScoreGroup", self.ply_frame:GetCanvas())
-    t:SetGroupInfo(GetTranslation("spectators"), Color(200, 200, 0, 100), GROUP_SPEC)
+    t:SetGroupInfo(GetTranslation("spectators"), COLOR_SPEC, GROUP_SPEC)
     self.ply_groups[GROUP_SPEC] = t
 
     if DetectiveMode() then

gamemodes/terrortown/gamemode/shared/hud_elements/tttinfopanel/pure_skin_playerinfo.lua

@@ -26,7 +26,6 @@ if CLIENT then
     local mat_tid_ammo = Material("vgui/ttt/tid/tid_ammo")
 
     local color_sprint = Color(36, 154, 198)
-    local color_defaultgrey = Color(100, 100, 100, 200)
     local color_health = Color(234, 41, 41)
     local color_ammoBar = Color(238, 151, 0)
 
@@ -150,7 +149,7 @@ if CLIENT then
         if cactive then
             c = client:GetRoleColor()
         else
-            c = color_defaultgrey
+            c = COLOR_SPEC
         end
 
         surface.SetDrawColor(clr(c))

gamemodes/terrortown/gamemode/shared/hud_elements/tttteamindicator/pure_skin_teamindicator.lua

@@ -87,7 +87,7 @@ if CLIENT then
             c = tm.color or COLOR_BLACK
         else -- player is dead and spectator
             icon = material_watching
-            c = COLOR_WARMGRAY
+            c = COLOR_SPEC
         end
 
         -- draw dark bottom overlay