> ## Documentation Index
> Fetch the complete documentation index at: https://docs.ntop.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Main Window

After you close the Home page, the main nTop window opens up.

![Main](https://storage.googleapis.com/files-learn/static/images/user-interface/mainwindow.jpg)

The overhead [**Menu Bar**](/_user_interface/_main_window/menubar) contains the core program, view, and window controls, along with updates, help, and account settings.

The [**Ribbon**](/_user_interface/_main_window/ribbon) contains all blocks organized into workflow themes accessed through dropdown menus.

The [**View Cube**](/_user_interface/_main_window/viewcube) is located at the top right of the screen and is used to change the orientation of the Viewport.

The **Notebook** is the designated workspace for adding, linking, and organizing blocks to form larger workflows.

The **Viewport** is your workspace to interact with and visualize bodies and other geometry types, simulation results, field data, and slice data.

The [**Status Bar**](/_user_interface/_main_window/statusbar), located at the bottom of the window, houses controls for the [3D resolution](/_user_interface/_main_window/resolution), block progress, and the [log panel](/_user_interface/_main_window/logpanel).

The main window is available in the standard Dark Theme or the Light Theme (Beta).

* Edit the [theme settings](/_user_interface/_settings.html#Display) in the View dropdown in the Menu Bar or go to File > Settings > Display.

<Columns cols={2}>
  <Card title="Menu bar" horizontal href="./_main_window/menubar" />

  <Card title="Ribbon" horizontal href="./_main_window/ribbon" />

  <Card title="View Cube" horizontal href="./_main_window/viewcube" />

  <Card title="Status Bar" horizontal href="./_main_window/statusbar" />

  <Card title="Resolution" horizontal href="./_main_window/resolution" />

  <Card title="Log Panel" horizontal href="./_main_window/logpanel" />
</Columns>