Gui button by SzymonDylano (my friend)

-- Objects

local ScreenGui = Instance.new("ScreenGui")
local gui = Instance.new("Frame")
local OpenClose = Instance.new("TextButton")

-- Properties

ScreenGui.Parent = game.PlayerGui

gui.Name = "gui"
gui.Parent = ScreenGui
gui.BackgroundColor3 = Color3.new(1, 1, 1)
gui.Position = UDim2.new(0.0070126229, 0, 0.195970699, 0)
gui.Size = UDim2.new(0, 169, 0, 98)

OpenClose.Name = "Open/Close"
OpenClose.Parent = gui
OpenClose.BackgroundColor3 = Color3.new(0, 0.333333, 1)
OpenClose.BorderColor3 = Color3.new(0, 0.333333, 1)
OpenClose.Position = UDim2.new(0, 0, 0.193877548, 0)
OpenClose.Size = UDim2.new(0, 200, 0, 50)
OpenClose.Font = Enum.Font.SourceSans
OpenClose.FontSize = Enum.FontSize.Size14
OpenClose.TextSize = 14