His complaint is that it doesn't work. So give him something that works so he'll leave until he realizes that it stops working because he lacks sufficient mental competence.
for _, v in ipairs(workspace:GetChildren()) do
if v:IsA("BasePart") and v ~= workspace.Terrain then
if v.BrickColor == BrickColor.new("Medium stone grey") then
v.BrickColor = BrickColor.Red()
break
end
end
end |