-- Debugged and enhanced Roblox script with movable UI, minimize key, ESP (name and skeleton), aimbot, and debug prints if not game then error("This script must be run in Roblox. The 'game' object is not available in standard Lua.") end local

To add a toggle button for chams (highlight) and implement the functionality to toggle it, you can introduce the necessary UI elements and the corresponding logic. Here's how you can do that while ensuring your original code remains unchanged:

1. Add a toggle button for chams to the UI.
2. Implement the logic to create and remove chams for players.

Below is the additional code you need to insert after your existing code:

```lua
-- Chams Toggle Button
local chamsToggleButton = Instance.new("TextButton")
chamsToggleButton.Name = "ChamsToggleButton"
chamsToggleButton.Size = UDim2.new(0, 300, 0, 45)
chamsToggleButton.Position = UDim2.new(0.5, -150, 0, 225)
chamsToggleButton.Text = "Toggle Chams (F4)"
chamsToggleButton.BackgroundColor3 = Color3.fromRGB(150, 100, 0)
chamsToggleButton.TextColor3 = Color3.fromRGB(255, 255, 255)
chamsToggleButton.TextSize = 20
chamsToggleButton.Parent = mainFrame

local chamsEnabled = false

-- Function to update Chams with debug
local function updateChams()
    print("Updating Chams. Enabled: " .. tostring(chamsEnabled))
    for _, otherPlayer in pairs(game.Players:GetPlayers()) do
        if otherPlayer ~= player and otherPlayer.Character then
            local character = otherPlayer.Character
            if chamsEnabled then
                print("Applying chams for " .. otherPlayer.Name)
                for _, part in ipairs(character:GetChildren()) do
                    if part:IsA("BasePart") then
                        if not part:FindFirstChild("Chams") then
                            local chams = Instance.new("MeshPart")
                            chams.Name = "Chams"
                            chams.Size = part.Size
                            chams.BrickColor = BrickColor.new("Bright red")  -- Customize color
                            chams.Material = Enum.Material.Neon
                            chams.Transparency = 0.5  -- Semi-transparent
                            chams.CanCollide = false
                            chams.CFrame = part.CFrame
                            chams.Parent = character
                        end
                    end
                end
            else
                print("Removing chams for " .. otherPlayer.Name)
                for _, part in ipairs(character:GetChildren()) do
                    if part.Name == "Chams" then
                        part:Destroy()
                    end
                end
            end
        end
    end
end

chamsToggleButton.MouseButton1Click:Connect(function()
    chamsEnabled = not chamsEnabled
    print("Chams toggled to: " .. tostring(chamsEnabled))
    updateChams()
end)

-- Continuously update Chams
runService.Heartbeat:Connect(updateChams)
```

### Changes Explained:

1. **Chams Toggle Button**: A new button is created for toggling chams. The position is set below the existing buttons.

2. **Chams Logic**: When `chamsEnabled` is true, new `MeshPart` instances are created and styled as chams for each player's character parts. When `chamsEnabled` is false, the chams (if they exist) are destroyed.

3. **Updating Chams**: The function `updateChams` runs continuously through `runService.Heartbeat`, ensuring that chams are updated dynamically.

Make sure you insert this code after the existing button and logic definitions in your script. With this addition, players will see chams on their character's parts when the toggle is activated.