Simple gui template

local ScreenGui = Instance.new("ScreenGui")
local Frame = Instance.new("Frame")

ScreenGui.Parent = game.Players.LocalPlayer:WaitForChild("PlayerGui")

Frame.Parent = ScreenGui
Frame.BackgroundColor3 = Color3.fromRGB(128, 128, 128)  -- Grey color
Frame.Size = UDim2.new(0, 200, 0, 200)
Frame.Position = UDim2.new(0.5, -100, 0.5, -100)  -- Centered position

-- Enable dragging
local dragging
local dragInput
local dragStart
local startPos

  (input)
     delta = input.Position - dragStart
    Frame.Position = .(startPos.X.Scale, startPos.X.Offset + delta.X, startPos.Y.Scale, startPos.Y.Offset + delta.Y)


Frame.InputBegan:((input)
     input.UserInputType == .UserInputType.MouseButton1  input.UserInputType == .UserInputType.Touch 
        dragging = 
        dragStart = input.Position
        startPos = Frame.Position

        input.Changed:(()
             input.UserInputState == .UserInputState.End 
                dragging = 
            
        )
    
)

Frame.InputChanged:((input)
     input.UserInputType == .UserInputType.MouseMovement  input.UserInputType == .UserInputType.Touch 
        dragInput = input
    
)

:().InputChanged:((input)
     input == dragInput  dragging 
        (input)
    
)