The title bar can be customized using CSS. For this purpose, there is a prefix that allows access to the title bar elements.

All classes possessed by the initial title bar are prefixed with `cet`.

## Classes

### Titlebar Classes

| Class | Description |
| --- | --- |
| `cet-titlebar` | Main class of the title bar |
| `cet-windows` | Applied class if running on Windows |
| `cet-mac` | Applied class if running on Mac |
| `cet-linux` | Applied class if running on Linux |
| `cet-icon` | Applied to the title bar icon |
| `cet-title` | Applied to the title of the title bar |