Change speed and jump power

local Players = game:GetService("Players")
local UserInput = game:GetService("UserInputService")

local player = Players.LocalPlayer
local playerGui = player:WaitForChild("PlayerGui")

local humanoid
local function refreshHumanoid(char)
    humanoid = char:WaitForChild("Humanoid")
end
if player.Character then
    refreshHumanoid(player.Character)
end
player.CharacterAdded:Connect(refreshHumanoid)

local screenGui = Instance.new("ScreenGui")
screenGui.Name = "SpeedJumpGui"
screenGui.ResetOnSpawn = false
screenGui.Parent = playerGui

local frame = Instance.new("Frame", screenGui)
frame.Size = UDim2.new(0, 220, 0, 140)
frame.Position = UDim2.new(0, 10, 0, 10)
frame.BackgroundColor3 = Color3.fromRGB(35, 35, 35)
frame.BorderSizePixel = 0
frame.AnchorPoint = Vector2.new(0, 0)
local title = Instance.new("TextLabel", frame)
title.Size = UDim2.new(1, 0, 0, 25)
title.BackgroundTransparency = 1
title.Text = "Speed & Jump Controller"
title.TextColor3 = Color3.new(1, 1, 1)
title.Font = Enum.Font.SourceSansBold
title.TextSize = 18

local function createSlider(labelText, yOffset, minVal, maxVal, defaultVal, propertyName)
    
    local lbl = Instance.new("TextLabel", frame)
    lbl.Size = UDim2.new(0, 80, 0, 20)
    lbl.Position = UDim2.new(0, 10, 0, yOffset)
    lbl.BackgroundTransparency = 1
    lbl.Text = labelText
    lbl.TextColor3 = Color3.new(1, 1, 1)
    lbl.Font = Enum.Font.SourceSans
    lbl.TextSize = 14

    local valLabel = Instance.new("TextLabel", frame)
    valLabel.Size = UDim2.new(0, 40, 0, 20)
    valLabel.Position = UDim2.new(1, -50, 0, yOffset)
    valLabel.BackgroundTransparency = 1
    valLabel.Text = tostring(defaultVal)
    valLabel.TextColor3 = Color3.new(1, 1, 1)
    valLabel.Font = Enum.Font.Code
    valLabel.TextSize = 14
    valLabel.TextXAlignment = Enum.TextXAlignment.Right

    local track = Instance.new("Frame", frame)
    track.Size = UDim2.new(1, -20, 0, 10)
    track.Position = UDim2.new(0, 10, 0, yOffset + 25)
    track.BackgroundColor3 = Color3.fromRGB(60, 60, 60)
    track.BorderSizePixel = 0

    local handle = Instance.new("ImageButton", track)
    handle.Size = UDim2.new(0, 14, 0, 14)
    handle.Position = UDim2.new((defaultVal - minVal)/(maxVal - minVal),  -7, 0, 0)
    handle.Image = "rbxassetid://3570695787"  -- round handle
    handle.BackgroundTransparency = 1
    handle.AutoButtonColor = false
    handle.Selectable = false
     local dragging = false
    handle.InputBegan:Connect(function(inp)
        if inp.UserInputType == Enum.UserInputType.MouseButton1 then
            dragging = true
        end
    end)
    handle.InputEnded:Connect(function(inp)
        if inp.UserInputType == Enum.UserInputType.MouseButton1 then
            dragging = false
        end
    end)
    UserInput.InputChanged:Connect(function(inp)
        if dragging and inp.UserInputType == Enum.UserInputType.MouseMovement then
            local absPos = track.AbsolutePosition.X
            local absSize = track.AbsoluteSize.X
            local mouseX = UserInput:GetMouseLocation().X
            local delta = math.clamp(mouseX - absPos, 0, absSize)
            local pct = delta / absSize
            local newVal = math.floor(minVal + (maxVal - minVal) * pct + 0.5)
            handle.Position = UDim2.new(pct, -7, 0, 0)
            valLabel.Text = tostring(newVal)
            if humanoid then
                humanoid[propertyName] = newVal
            end
        end
    end)
if humanoid then
        humanoid[propertyName] = defaultVal
    end
end
createSlider("Speed",     35,  0, 150, 16, "WalkSpeed")
createSlider("Jump Height", 85, 0, 200, 50, "JumpPower")