Why does it turn all of the textlabels color to white not just one of them?

So. i am making a tab system so like if you click on Tab1 or Tab2 or Tab2 then that page will open but when you click on it the button that makes so you changes to that page the text tho i want that to turn white when you click on it and turn all of the other texts up there to gray isch but i dont know why the script i have makes so all of the texts turn into white not just the one you click on. I dont know if it is any way to make the change page script much better so this is the only way i know.

Script:

local GUI = script.Parent
local Face = GUI:FindFirstChild('FaceFrame')
local Gender = GUI:FindFirstChild('Gender')
local Cuz = GUI:FindFirstChild('Customization')
local Buttons = GUI:FindFirstChild('Buttons')

GUI.Buttons.FaceButton.MouseButton1Down:connect(function()
	GUI.Buttons.Text.Face.TextColor3 = Color3.new(255, 255, 255)
	GUI.Buttons.Text.Hair.TextColor3 = Color3.new(121, 121, 121)
	GUI.Buttons.Text.Gender.TextColor3 = Color3.new(121, 121, 121)
	Gender.Visible = false
	Cuz.Visible = false
	Face.Visible = true
end)

GUI.Buttons.HairButton.MouseButton1Down:connect(function()
	GUI.Buttons.Text.Face.TextColor3 = Color3.new(121, 121, 121)
	GUI.Buttons.Text.Hair.TextColor3 = Color3.new(255, 255, 255)
	GUI.Buttons.Text.Gender.TextColor3 = Color3.new(121, 121, 121)
	Gender.Visible = false
	Cuz.Visible = true
	Face.Visible = false
end)

GUI.Buttons.CustomizeButton.MouseButton1Down:connect(function()
	GUI.Buttons.Text.Face.TextColor3 = Color3.new(121, 121, 121)
	GUI.Buttons.Text.Hair.TextColor3 = Color3.new(121, 121, 121)
	GUI.Buttons.Text.Gender.TextColor3 = Color3.new(255, 255, 255)
	Gender.Visible = true
	Cuz.Visible = false
	Face.Visible = false
end)