diff --git a/Library/testing.lua b/Library/testing.lua
new file mode 100644
index 0000000..3e83915
--- /dev/null
+++ b/Library/testing.lua
@@ -0,0 +1,632 @@
+local TweenService = game:GetService("TweenService")
+local UserInputService = game:GetService("UserInputService")
+local RunService = game:GetService("RunService")
+local HttpService = game:GetService("HttpService")
+local Players = game:GetService("Players")
+local Stats = game:GetService("Stats")
+
+local JustHub = {}
+
+JustHub.Themes = {
+	Darker = {
+		["Color Hub 1"] = ColorSequence.new({ColorSequenceKeypoint.new(0, Color3.fromRGB(25,25,25)), ColorSequenceKeypoint.new(0.5, Color3.fromRGB(32,32,32)), ColorSequenceKeypoint.new(1, Color3.fromRGB(25,25,25))}),
+		["Color Hub 2"] = Color3.fromRGB(30,30,30),
+		["Color Stroke"] = Color3.fromRGB(40,40,40),
+		["Color Theme"] = Color3.fromRGB(88,101,242),
+		["Color Text"] = Color3.fromRGB(243,243,243),
+		["Color Dark Text"] = Color3.fromRGB(180,180,180)
+	},
+	Dark = {
+		["Color Hub 1"] = ColorSequence.new({ColorSequenceKeypoint.new(0, Color3.fromRGB(40,40,40)), ColorSequenceKeypoint.new(0.5, Color3.fromRGB(47,47,47)), ColorSequenceKeypoint.new(1, Color3.fromRGB(40,40,40))}),
+		["Color Hub 2"] = Color3.fromRGB(45,45,45),
+		["Color Stroke"] = Color3.fromRGB(65,65,65),
+		["Color Theme"] = Color3.fromRGB(65,150,255),
+		["Color Text"] = Color3.fromRGB(245,245,245),
+		["Color Dark Text"] = Color3.fromRGB(190,190,190)
+	},
+	Purple = {
+		["Color Hub 1"] = ColorSequence.new({ColorSequenceKeypoint.new(0, Color3.fromRGB(28,25,30)), ColorSequenceKeypoint.new(0.5, Color3.fromRGB(32,32,32)), ColorSequenceKeypoint.new(1, Color3.fromRGB(28,25,30))}),
+		["Color Hub 2"] = Color3.fromRGB(30,30,30),
+		["Color Stroke"] = Color3.fromRGB(40,40,40),
+		["Color Theme"] = Color3.fromRGB(150,0,255),
+		["Color Text"] = Color3.fromRGB(240,240,240),
+		["Color Dark Text"] = Color3.fromRGB(180,180,180)
+	}
+}
+
+JustHub.Info = {Version = "1.1.0"}
+JustHub.Save = {UISize = {550,380}, TabSize = 160, Theme = "Darker"}
+
+local function createInstance(className, properties, parent)
+	local inst = Instance.new(className)
+	if properties then
+		for k, v in pairs(properties) do
+			inst[k] = v
+		end
+	end
+	if parent then inst.Parent = parent end
+	return inst
+end
+
+local function tweenProperty(object, propertyTable, duration)
+	local tweenInfo = TweenInfo.new(duration, Enum.EasingStyle.Quad, Enum.EasingDirection.Out)
+	local tween = TweenService:Create(object, tweenInfo, propertyTable)
+	tween:Play()
+	return tween
+end
+
+local function getCurrentTheme(themeChoice)
+	if type(themeChoice) == "table" then
+		return themeChoice
+	else
+		return JustHub.Themes[themeChoice or JustHub.Save.Theme]
+	end
+end
+
+local function clampPosition(position, screenSize)
+	local xOffset = math.clamp(position.X.Offset, 0, screenSize.X)
+	local yOffset = math.clamp(position.Y.Offset, 0, screenSize.Y)
+	return UDim2.new(position.X.Scale, xOffset, position.Y.Scale, yOffset)
+end
+
+function JustHub:CreateWindow(options)
+	options = options or {}
+	local windowName = options.Name or "JustHub Window"
+	local currentTheme = getCurrentTheme(options.Theme)
+	local windowGUID = HttpService:GenerateGUID(false)
+	local finalTitle = windowName .. " [" .. windowGUID .. "]"
+	local player = Players.LocalPlayer
+	local playerGui = player:WaitForChild("PlayerGui")
+	local screenGui = createInstance("ScreenGui", {Name = "JustHub", ResetOnSpawn = false}, playerGui)
+	local uiWidth = JustHub.Save.UISize[1]
+	local uiHeight = JustHub.Save.UISize[2]
+	local mainFrame = createInstance("Frame", {
+		Name = "MainFrame",
+		AnchorPoint = Vector2.new(0.5,0.5),
+		Position = UDim2.new(0.5,0,-0.5,0),
+		Size = UDim2.new(0,uiWidth,0,uiHeight),
+		BackgroundColor3 = currentTheme["Color Hub 2"],
+	}, screenGui)
+	createInstance("UICorner", {CornerRadius = UDim.new(0,12)}, mainFrame)
+	createInstance("UIStroke", {Color = currentTheme["Color Stroke"], Thickness = 2}, mainFrame)
+	createInstance("UIGradient", {Color = currentTheme["Color Hub 1"]}, mainFrame)
+	local topBar = createInstance("Frame", {Name = "TopBar", Size = UDim2.new(1,0,0,60), BackgroundColor3 = currentTheme["Color Hub 2"]}, mainFrame)
+	createInstance("UICorner", {CornerRadius = UDim.new(0,12)}, topBar)
+	local titleLabel = createInstance("TextLabel", {
+		Name = "TitleLabel",
+		Size = UDim2.new(1,-120,1,0),
+		Position = UDim2.new(0,10,0,0),
+		BackgroundTransparency = 1,
+		Text = finalTitle,
+		TextColor3 = currentTheme["Color Text"],
+		Font = Enum.Font.GothamBold,
+		TextSize = 18,
+		TextXAlignment = Enum.TextXAlignment.Left,
+	}, topBar)
+	local function createControlButton(name, image, pos)
+		return createInstance("ImageButton", {
+			Name = name,
+			Size = UDim2.new(0,40,0,40),
+			Position = pos,
+			BackgroundTransparency = 1,
+			Image = image,
+			ImageColor3 = currentTheme["Color Theme"],
+		}, topBar)
+	end
+	local hideButton = createControlButton("HideButton", "rbxassetid://1307617803", UDim2.new(1,-110,0,10))
+	local maxButton = createControlButton("MaxButton", "rbxassetid://1307617941", UDim2.new(1,-70,0,10))
+	local closeButton = createControlButton("CloseButton", "rbxassetid://3926305904", UDim2.new(1,-30,0,10))
+	local sidebarWidth = JustHub.Save.TabSize
+	local sidebar = createInstance("Frame", {
+		Name = "Sidebar",
+		Size = UDim2.new(0,sidebarWidth,1,-60),
+		Position = UDim2.new(0,0,0,60),
+		BackgroundColor3 = currentTheme["Color Hub 2"],
+	}, mainFrame)
+	createInstance("UICorner", {CornerRadius = UDim.new(0,10)}, sidebar)
+	createInstance("UIListLayout", {
+		FillDirection = Enum.FillDirection.Vertical,
+		Padding = UDim.new(0,10),
+		HorizontalAlignment = Enum.HorizontalAlignment.Center,
+		VerticalAlignment = Enum.VerticalAlignment.Top,
+	}, sidebar)
+	local contentContainer = createInstance("Frame", {
+		Name = "ContentContainer",
+		Size = UDim2.new(1,-sidebarWidth,1,-60),
+		Position = UDim2.new(0,sidebarWidth,0,60),
+		BackgroundColor3 = currentTheme["Color Hub 2"],
+	}, mainFrame)
+	createInstance("UICorner", {CornerRadius = UDim.new(0,10)}, contentContainer)
+	local scrollingFrame = createInstance("ScrollingFrame", {
+		Size = UDim2.new(1,0,1,0),
+		BackgroundTransparency = 1,
+		ScrollBarThickness = 8,
+		BorderSizePixel = 0,
+	}, contentContainer)
+	createInstance("UIListLayout", {
+		SortOrder = Enum.SortOrder.LayoutOrder,
+		Padding = UDim.new(0,10),
+	}, scrollingFrame)
+	local fpsLabel = createInstance("TextLabel", {
+		Name = "FPSLabel",
+		Size = UDim2.new(0,100,0,20),
+		Position = UDim2.new(1,-110,1,-30),
+		BackgroundTransparency = 1,
+		TextColor3 = currentTheme["Color Text"],
+		Font = Enum.Font.Gotham,
+		TextSize = 14,
+		Text = "FPS: Calculating...",
+	}, mainFrame)
+	RunService.Heartbeat:Connect(function(delta)
+		local fps = math.floor(1/delta)
+		fpsLabel.Text = "FPS: " .. fps
+	end)
+	local tweenInfoIn = TweenInfo.new(0.5, Enum.EasingStyle.Back, Enum.EasingDirection.Out)
+	local tweenIn = TweenService:Create(mainFrame, tweenInfoIn, {Position = UDim2.new(0.5,0,0.5,0)})
+	tweenIn:Play()
+	closeButton.MouseButton1Click:Connect(function()
+		local tweenInfoOut = TweenInfo.new(0.5, Enum.EasingStyle.Back, Enum.EasingDirection.In)
+		local tweenOut = TweenService:Create(mainFrame, tweenInfoOut, {Position = UDim2.new(0.5,0,-0.5,0)})
+		tweenOut:Play()
+		tweenOut.Completed:Connect(function() screenGui:Destroy() end)
+	end)
+	local dragging = false
+	local dragStart, startPos
+	topBar.InputBegan:Connect(function(input)
+		if input.UserInputType == Enum.UserInputType.MouseButton1 or input.UserInputType == Enum.UserInputType.Touch then
+			dragging = true
+			dragStart = input.Position
+			startPos = mainFrame.Position
+		end
+	end)
+	topBar.InputChanged:Connect(function(input)
+		if dragging and (input.UserInputType == Enum.UserInputType.MouseMovement or input.UserInputType == Enum.UserInputType.Touch) then
+			local delta = input.Position - dragStart
+			local newPos = UDim2.new(
+				startPos.X.Scale,
+				startPos.X.Offset + delta.X,
+				startPos.Y.Scale,
+				startPos.Y.Offset + delta.Y
+			)
+			newPos = clampPosition(newPos, Vector2.new(screenGui.AbsoluteSize.X, screenGui.AbsoluteSize.Y))
+			mainFrame.Position = newPos
+		end
+	end)
+	UserInputService.InputEnded:Connect(function(input)
+		if input.UserInputType == Enum.UserInputType.MouseButton1 or input.UserInputType == Enum.UserInputType.Touch then dragging = false end
+	end)
+	print("JustHub Window dibuat.")
+	local windowObject = {
+		ScreenGui = screenGui,
+		MainFrame = mainFrame,
+		TopBar = topBar,
+		Sidebar = sidebar,
+		ContentContainer = contentContainer,
+		Tabs = {}
+	}
+	function windowObject:addTab(tabName)
+		tabName = tabName or "Tab"
+		local tabButton = createInstance("TextButton", {
+			Name = tabName .. "Button",
+			Text = tabName,
+			Size = UDim2.new(1, -10, 0, 30),
+			BackgroundColor3 = currentTheme["Color Stroke"],
+			TextColor3 = currentTheme["Color Text"],
+			Font = Enum.Font.GothamBold,
+			TextSize = 16,
+		}, self.Sidebar)
+		local tabContent = createInstance("Frame", {
+			Name = tabName .. "Content",
+			Size = UDim2.new(1,0,1,0),
+			BackgroundTransparency = 1,
+			Visible = false,
+		}, scrollingFrame)
+		local tabObject = {
+			Name = tabName,
+			Button = tabButton,
+			Content = tabContent,
+			Sections = {}
+		}
+		table.insert(self.Tabs, tabObject)
+		tabButton.MouseButton1Click:Connect(function()
+			for _, t in ipairs(self.Tabs) do
+				t.Content.Visible = false
+			end
+			tabObject.Content.Visible = true
+		end)
+		if #self.Tabs == 1 then tabObject.Content.Visible = true end
+		function tabObject:addSection(sectionName, sectionHeight)
+			sectionName = sectionName or "Section"
+			sectionHeight = sectionHeight or 100
+			local sectionFrame = createInstance("Frame", {
+				Name = sectionName,
+				Size = UDim2.new(1, -20, 0, sectionHeight),
+				BackgroundColor3 = currentTheme["Color Hub 2"],
+				BackgroundTransparency = 0.2,
+			}, self.Content)
+			createInstance("UICorner", {CornerRadius = UDim.new(0,8)}, sectionFrame)
+			local sectionTitle = createInstance("TextLabel", {
+				Name = "SectionTitle",
+				Text = sectionName,
+				Size = UDim2.new(1,0,0,30),
+				BackgroundTransparency = 1,
+				TextColor3 = currentTheme["Color Text"],
+				Font = Enum.Font.GothamBold,
+				TextSize = 16,
+				TextXAlignment = Enum.TextXAlignment.Left,
+			}, sectionFrame)
+			local sectionContent = createInstance("Frame", {
+				Name = "SectionContent",
+				Size = UDim2.new(1,0,1,-30),
+				Position = UDim2.new(0,0,0,30),
+				BackgroundTransparency = 1,
+			}, sectionFrame)
+			createInstance("UIListLayout", {
+				FillDirection = Enum.FillDirection.Vertical,
+				Padding = UDim.new(0,5),
+				SortOrder = Enum.SortOrder.LayoutOrder,
+			}, sectionContent)
+			local sectionObj = {
+				Frame = sectionFrame,
+				Title = sectionTitle,
+				Content = sectionContent,
+			}
+			table.insert(self.Sections, sectionObj)
+			function sectionObj:addMenu(menuName)
+				menuName = menuName or "Menu"
+				local menuFrame = createInstance("Frame", {
+					Name = menuName,
+					Size = UDim2.new(1,0,0,40),
+					BackgroundColor3 = currentTheme["Color Stroke"],
+					BackgroundTransparency = 0.3,
+				}, self.Content)
+				createInstance("UICorner", {CornerRadius = UDim.new(0,6)}, menuFrame)
+				createInstance("TextLabel", {
+					Name = "MenuLabel",
+					Text = menuName,
+					Size = UDim2.new(1,0,1,0),
+					BackgroundTransparency = 1,
+					TextColor3 = currentTheme["Color Text"],
+					Font = Enum.Font.GothamBold,
+					TextSize = 16,
+				}, menuFrame)
+				return menuFrame
+			end
+			function sectionObj:addToggle(options)
+				options = options or {}
+				local toggleName = options.Name or "Toggle"
+				local default = options.Default or false
+				local callback = options.Callback or function(state) end
+				local toggleFrame = createInstance("Frame", {
+					Name = toggleName .. "Toggle",
+					Size = UDim2.new(1,0,0,20),
+					BackgroundTransparency = 1,
+				}, self.Content)
+				local label = createInstance("TextLabel", {
+					Name = "Label",
+					Text = toggleName,
+					Size = UDim2.new(0.6,0,1,0),
+					BackgroundTransparency = 1,
+					TextColor3 = currentTheme["Color Text"],
+					Font = Enum.Font.Gotham,
+					TextSize = 10,
+					TextXAlignment = Enum.TextXAlignment.Left,
+				}, toggleFrame)
+				local toggleSwitch = createInstance("Frame", {
+					Name = "ToggleSwitch",
+					Size = UDim2.new(0,35,0,15),
+					Position = UDim2.new(0.65,0,0.5,-7.5),
+					BackgroundColor3 = default and Color3.fromRGB(0,200,0) or Color3.fromRGB(100,100,100),
+					BorderSizePixel = 0,
+					AnchorPoint = Vector2.new(0,0.5),
+				}, toggleFrame)
+				createInstance("UICorner", {CornerRadius = UDim.new(0,15)}, toggleSwitch)
+				local toggleCircle = createInstance("Frame", {
+					Name = "ToggleCircle",
+					Size = UDim2.new(0,13,0,13),
+					Position = default and UDim2.new(0,20,0.5,-6.5) or UDim2.new(0,2,0.5,-6.5),
+					BackgroundColor3 = Color3.new(1,1,1),
+					BorderSizePixel = 0,
+				}, toggleSwitch)
+				createInstance("UICorner", {CornerRadius = UDim.new(1,0)}, toggleCircle)
+				local state = default
+				toggleSwitch.InputBegan:Connect(function(input)
+					if input.UserInputType == Enum.UserInputType.MouseButton1 or input.UserInputType == Enum.UserInputType.Touch then
+						state = not state
+						if state then
+							TweenService:Create(toggleCircle, TweenInfo.new(0.2), {Position = UDim2.new(0,20,0.5,-6.5)}):Play()
+							TweenService:Create(toggleSwitch, TweenInfo.new(0.2), {BackgroundColor3 = Color3.fromRGB(0,200,0)}):Play()
+						else
+							TweenService:Create(toggleCircle, TweenInfo.new(0.2), {Position = UDim2.new(0,2,0.5,-6.5)}):Play()
+							TweenService:Create(toggleSwitch, TweenInfo.new(0.2), {BackgroundColor3 = Color3.fromRGB(100,100,100)}):Play()
+						end
+						pcall(callback, state)
+					end
+				end)
+				return toggleFrame
+			end
+			function sectionObj:addSlider(options)
+				options = options or {}
+				local sliderName = options.Name or "Slider"
+				local min = options.Min or 0
+				local max = options.Max or 100
+				local default = options.Default or min
+				local callback = options.Callback or function(value) end
+				local sliderFrame = createInstance("Frame", {Name = sliderName.."Slider", Size = UDim2.new(1,0,0,25), BackgroundTransparency = 1}, self.Content)
+				local label = createInstance("TextLabel", {Name = "Label", Text = sliderName, Size = UDim2.new(0.4,0,1,0), BackgroundTransparency = 1, TextColor3 = currentTheme["Color Text"], Font = Enum.Font.Gotham, TextSize = 10}, sliderFrame)
+				local sliderArea = createInstance("Frame", {
+					Name = "SliderArea",
+					Size = UDim2.new(0.6,0,1,0),
+					Position = UDim2.new(0.4,0,0,0),
+					BackgroundTransparency = 1,
+				}, sliderFrame)
+				local sliderBar = createInstance("Frame", {Name = "SliderBar", Size = UDim2.new(1,-20,0,6), Position = UDim2.new(0,10,0.5,-3), BackgroundColor3 = currentTheme["Color Stroke"]}, sliderArea)
+				createInstance("UICorner", {CornerRadius = UDim.new(0,4)}, sliderBar)
+				local sliderHandle = createInstance("Frame", {Name = "SliderHandle", Size = UDim2.new(0,16,0,16), BackgroundColor3 = currentTheme["Color Theme"], Position = UDim2.new((default - min)/(max - min), -8, 0.5,-8)}, sliderBar)
+				createInstance("UICorner", {CornerRadius = UDim.new(0,4)}, sliderHandle)
+				local dragging = false
+				sliderHandle.InputBegan:Connect(function(input)
+					if input.UserInputType == Enum.UserInputType.MouseButton1 or input.UserInputType == Enum.UserInputType.Touch then dragging = true end
+				end)
+				sliderHandle.InputEnded:Connect(function(input)
+					if input.UserInputType == Enum.UserInputType.MouseButton1 or input.UserInputType == Enum.UserInputType.Touch then dragging = false end
+				end)
+				UserInputService.InputChanged:Connect(function(input)
+					if dragging and (input.UserInputType == Enum.UserInputType.MouseMovement or input.UserInputType == Enum.UserInputType.Touch) then
+						local barAbsPos = sliderBar.AbsolutePosition.X
+						local barWidth = sliderBar.AbsoluteSize.X
+						local relativePos = math.clamp((input.Position.X - barAbsPos) / barWidth, 0, 1)
+						sliderHandle.Position = UDim2.new(relativePos, -8, sliderHandle.Position.Y.Scale, sliderHandle.Position.Y.Offset)
+						local value = min + relativePos*(max - min)
+						pcall(callback, value)
+					end
+				end)
+				return sliderFrame
+			end
+			function sectionObj:addTextBox(options)
+				options = options or {}
+				local textBoxName = options.Name or "TextBox"
+				local defaultText = options.Default or ""
+				local callback = options.Callback or function(text) end
+				local textBoxFrame = createInstance("Frame", {Name = textBoxName.."TextBox", Size = UDim2.new(1,0,0,20), BackgroundTransparency = 1}, self.Content)
+				local label = createInstance("TextLabel", {Name = "Label", Text = textBoxName, Size = UDim2.new(0.4,0,1,0), BackgroundTransparency = 1, TextColor3 = currentTheme["Color Text"], Font = Enum.Font.Gotham, TextSize = 10}, textBoxFrame)
+				local textbox = createInstance("TextBox", {Name = "Input", Text = defaultText, Size = UDim2.new(0.55,0,1,0), Position = UDim2.new(0.45,0,0,0), BackgroundColor3 = currentTheme["Color Stroke"], TextColor3 = currentTheme["Color Text"], Font = Enum.Font.Gotham, TextSize = 10}, textBoxFrame)
+				textbox.FocusLost:Connect(function(enterPressed)
+					pcall(callback, textbox.Text)
+				end)
+				return textBoxFrame
+			end
+			function sectionObj:addDropdown(options)
+				options = options or {}
+				local dropdownName = options.Name or "Dropdown"
+				local items = options.Items or {}
+				local callback = options.Callback or function(selected) end
+				local dropdownFrame = createInstance("Frame", {Name = dropdownName.."Dropdown", BackgroundTransparency = 1}, self.Content)
+				local layout = createInstance("UIListLayout", {Padding = UDim.new(0,5), SortOrder = Enum.SortOrder.LayoutOrder}, dropdownFrame)
+				dropdownFrame.Size = UDim2.new(1,0,0,30)
+				local label = createInstance("TextLabel", {Name = "Label", Text = dropdownName, Size = UDim2.new(1,0,0,20), BackgroundTransparency = 1, TextColor3 = currentTheme["Color Text"], Font = Enum.Font.Gotham, TextSize = 10}, dropdownFrame)
+				local dropdownButton = createInstance("TextButton", {Name = "DropdownButton", Text = "Select", Size = UDim2.new(1,0,0,30), BackgroundColor3 = currentTheme["Color Stroke"], TextColor3 = currentTheme["Color Text"], Font = Enum.Font.GothamBold, TextSize = 10}, dropdownFrame)
+				local listFrame = createInstance("Frame", {Name = "DropdownList", BackgroundColor3 = currentTheme["Color Hub 2"], Visible = false}, dropdownFrame)
+				createInstance("UIListLayout", {Padding = UDim.new(0,5), SortOrder = Enum.SortOrder.LayoutOrder}, listFrame)
+				local expanded = false
+				dropdownButton.MouseButton1Click:Connect(function()
+					expanded = not expanded
+					listFrame.Visible = expanded
+				end)
+				for i, item in ipairs(items) do
+					local optionButton = createInstance("TextButton", {
+						Name = "Option"..i,
+						Text = item,
+						Size = UDim2.new(1,0,0,30),
+						BackgroundColor3 = currentTheme["Color Stroke"],
+						TextColor3 = currentTheme["Color Text"],
+						Font = Enum.Font.GothamBold,
+						TextSize = 10,
+					}, listFrame)
+					optionButton.MouseButton1Click:Connect(function()
+						dropdownButton.Text = item
+						expanded = false
+						listFrame.Visible = false
+						pcall(callback, item)
+					end)
+				end
+				return dropdownFrame
+			end
+			function sectionObj:addButton(options)
+				options = options or {}
+				local labelText = options.Name or "Button"
+				local buttonText = options.ButtonText or "Click"
+				local callback = options.Callback or function() end
+				local container = createInstance("Frame", {
+					Name = labelText.."ButtonControl",
+					Size = UDim2.new(1,0,0,30),
+					BackgroundTransparency = 1,
+				}, self.Content)
+				local label = createInstance("TextLabel", {
+					Name = "Label",
+					Text = labelText,
+					Size = UDim2.new(0.6,0,1,0),
+					BackgroundTransparency = 1,
+					TextColor3 = currentTheme["Color Text"],
+					Font = Enum.Font.Gotham,
+					TextSize = 10,
+					TextXAlignment = Enum.TextXAlignment.Left,
+				}, container)
+				local button = createInstance("TextButton", {
+					Name = "ActionButton",
+					Text = buttonText,
+					Size = UDim2.new(0.35,0,0.8,0),
+					Position = UDim2.new(0.65,0,0.1,0),
+					BackgroundColor3 = currentTheme["Color Theme"],
+					TextColor3 = currentTheme["Color Text"],
+					Font = Enum.Font.GothamBold,
+					TextSize = 10,
+				}, container)
+				createInstance("UICorner", {CornerRadius = UDim.new(0,6)}, button)
+				button.MouseButton1Click:Connect(function()
+					pcall(callback)
+				end)
+				return container
+			end
+			return sectionObj
+		end
+		return tabObject
+	end
+	return windowObject
+end
+
+function JustHub:ShowLoadingScreen(duration, callback)
+	duration = duration or 3
+	callback = callback or function() end
+	local player = Players.LocalPlayer
+	local playerGui = player:WaitForChild("PlayerGui")
+	local loadingGui = createInstance("ScreenGui", {Name = "LoadingScreen", ResetOnSpawn = false, IgnoreGuiInset = true}, playerGui)
+	local background = createInstance("Frame", {
+		Size = UDim2.new(1,0,1,0),
+		Position = UDim2.new(0,0,0,0),
+		BackgroundColor3 = Color3.new(0,0,0),
+		BackgroundTransparency = 0.5,
+		BorderSizePixel = 0,
+	}, loadingGui)
+	local titleLabel = createInstance("TextLabel", {
+		Text = "JustHub Library",
+		Font = Enum.Font.SourceSansSemibold,
+		TextSize = 20,
+		TextColor3 = getCurrentTheme(JustHub.Save.Theme)["Color Text"],
+		BackgroundTransparency = 1,
+		Size = UDim2.new(0,200,0,50),
+		AnchorPoint = Vector2.new(0.5,0.5),
+		Position = UDim2.new(0.5,0,0.5,-50),
+	}, loadingGui)
+	local progressBarContainer = createInstance("Frame", {
+		Size = UDim2.new(0.5,0,0,20),
+		Position = UDim2.new(0.5,0,0.5,50),
+		AnchorPoint = Vector2.new(0.5,0.5),
+		BackgroundColor3 = getCurrentTheme(JustHub.Save.Theme)["Color Stroke"],
+		BackgroundTransparency = 0.5,
+		BorderSizePixel = 0,
+	}, loadingGui)
+	createInstance("UICorner", {CornerRadius = UDim.new(0,4)}, progressBarContainer)
+	local progressBarFill = createInstance("Frame", {
+		Size = UDim2.new(0,0,1,0),
+		BackgroundColor3 = getCurrentTheme(JustHub.Save.Theme)["Color Theme"],
+		BorderSizePixel = 0,
+	}, progressBarContainer)
+	createInstance("UICorner", {CornerRadius = UDim.new(0,4)}, progressBarFill)
+	local tweenInfo = TweenInfo.new(duration, Enum.EasingStyle.Quad, Enum.EasingDirection.Out)
+	local progressTween = TweenService:Create(progressBarFill, tweenInfo, {Size = UDim2.new(1,0,1,0)})
+	progressTween:Play()
+	spawn(function()
+		while progressTween.PlaybackState == Enum.PlaybackState.Playing do
+			tweenProperty(titleLabel, {TextTransparency = 0.5}, 0.5)
+			wait(0.5)
+			tweenProperty(titleLabel, {TextTransparency = 0}, 0.5)
+			wait(0.5)
+		end
+	end)
+	progressTween.Completed:Connect(function()
+		loadingGui:Destroy()
+		callback()
+	end)
+end
+
+function JustHub:SaveConfig(config)
+	if writefile then
+		local json = HttpService:JSONEncode(config)
+		writefile("JustHub_Config.json", json)
+		print("Config saved!")
+	else
+		warn("Saving config is not supported in this environment.")
+	end
+end
+
+function JustHub:LoadConfig()
+	if readfile then
+		local data = readfile("JustHub_Config.json")
+		local config = HttpService:JSONDecode(data)
+		print("Config loaded!")
+		return config
+	else
+		warn("Loading config is not supported in this environment.")
+		return {}
+	end
+end
+
+function JustHub:ToggleUIVisibility()
+	if self.ScreenGui and self.ScreenGui.Parent then
+		self.ScreenGui.Enabled = not self.ScreenGui.Enabled
+	end
+end
+
+UserInputService.InputBegan:Connect(function(input, gameProcessed)
+	if not gameProcessed and input.KeyCode == Enum.KeyCode.RightShift then
+		JustHub:ToggleUIVisibility()
+	end
+end)
+
+function JustHub:Notify(options)
+	options = options or {}
+	local title = options.Title or ""
+	local message = options.Message or ""
+	local duration = options.Duration or 3
+	local currentTheme = getCurrentTheme(options.Theme) or JustHub.Themes[JustHub.Save.Theme]
+	local player = Players.LocalPlayer
+	local playerGui = player:WaitForChild("PlayerGui")
+	local notificationContainer = playerGui:FindFirstChild("NotificationContainer")
+	if not notificationContainer then
+		notificationContainer = createInstance("ScreenGui", {Name = "NotificationContainer", ResetOnSpawn = false}, playerGui)
+		local containerFrame = createInstance("Frame", {
+			Name = "Container",
+			AnchorPoint = Vector2.new(1,1),
+			Position = UDim2.new(1,-10,1,-10),
+			Size = UDim2.new(0,300,0,0),
+			BackgroundTransparency = 1,
+		}, notificationContainer)
+		createInstance("UIListLayout", {SortOrder = Enum.SortOrder.LayoutOrder, Padding = UDim.new(0,10), VerticalAlignment = Enum.VerticalAlignment.Bottom}, containerFrame)
+		notificationContainer.Container = containerFrame
+	end
+	local containerFrame = notificationContainer.Container
+	local notificationFrame = createInstance("Frame", {
+		Name = "Notification",
+		Size = UDim2.new(1,0,0,80),
+		BackgroundColor3 = currentTheme["Color Hub 2"],
+		BackgroundTransparency = 1,
+	}, containerFrame)
+	createInstance("UICorner", {CornerRadius = UDim.new(0,8)}, notificationFrame)
+	createInstance("UIStroke", {Color = currentTheme["Color Stroke"], Thickness = 1}, notificationFrame)
+	local titleLabel = createInstance("TextLabel", {
+		Name = "Title",
+		Text = title,
+		Size = UDim2.new(1,-10,0,20),
+		Position = UDim2.new(0,5,0,5),
+		BackgroundTransparency = 1,
+		TextColor3 = currentTheme["Color Text"],
+		Font = Enum.Font.GothamBold,
+		TextSize = 16,
+		TextXAlignment = Enum.TextXAlignment.Left,
+	}, notificationFrame)
+	local messageLabel = createInstance("TextLabel", {
+		Name = "Message",
+		Text = message,
+		Size = UDim2.new(1,-10,0,40),
+		Position = UDim2.new(0,5,0,30),
+		BackgroundTransparency = 1,
+		TextColor3 = currentTheme["Color Dark Text"],
+		Font = Enum.Font.Gotham,
+		TextSize = 14,
+		TextXAlignment = Enum.TextXAlignment.Left,
+		TextWrapped = true,
+	}, notificationFrame)
+	tweenProperty(notificationFrame, {BackgroundTransparency = 0}, 0.5)
+	tweenProperty(titleLabel, {TextTransparency = 0}, 0.5)
+	tweenProperty(messageLabel, {TextTransparency = 0}, 0.5)
+	delay(duration, function()
+		tweenProperty(notificationFrame, {BackgroundTransparency = 1}, 0.5)
+		tweenProperty(titleLabel, {TextTransparency = 1}, 0.5)
+		tweenProperty(messageLabel, {TextTransparency = 1}, 0.5).Completed:Connect(function()
+			notificationFrame:Destroy()
+		end)
+	end)
+end
+
+return JustHub