k00pkidd770 gui f3x v4 There is no v3

-- k00pkidd770 gui f3x
local ScreenGui = Instance.new("ScreenGui")
ScreenGui.Name = "k00pkidd770_gui_f3x"
ScreenGui.Parent = game.CoreGui
ScreenGui.ZIndexBehavior = Enum.ZIndexBehavior.Sibling

-- Khung chính
local MainFrame = Instance.new("Frame")
MainFrame.Name = "MainFrame"
MainFrame.Parent = ScreenGui
MainFrame.BackgroundColor3 = Color3.fromRGB(20, 20, 20)
MainFrame.Size = UDim2.new(0, 500, 0, 450) 
MainFrame.Position = UDim2.new(0.5, -250, 0.5, -225) 
MainFrame.Active = true
MainFrame.Draggable = true 

local MainCorner = Instance.new("UICorner")
MainCorner.CornerRadius = UDim.new(0, 12)
MainCorner.Parent = MainFrame

-- Tên Script nằm giữa BTOOLS và RE
local ScriptTitle = Instance.new("TextLabel")
ScriptTitle.Name = "ScriptTitle"
ScriptTitle.Parent = MainFrame
ScriptTitle.BackgroundTransparency = 1
ScriptTitle.Position = UDim2.new(0, 100, 0, 7)
ScriptTitle.Size = UDim2.new(0, 300, 0, 32)
ScriptTitle.Font = Enum.Font.GothamBold
ScriptTitle.Text = "k00pkid770 gui f3x"
ScriptTitle.TextColor3 = Color3.fromRGB(255, 255, 255)
ScriptTitle.TextSize = 16

-- Hàm tạo hiệu ứng phát sáng
local function MakeGlow(button)
    local originalColor = Color3.fromRGB(50, 50, 50)
    button.MouseButton1Down:Connect(function()
        button.BackgroundColor3 = Color3.fromRGB(255, 255, 255)
        button.TextColor3 = Color3.fromRGB(0, 0, 0)
    end)
    button.MouseButton1Up:Connect(function()