By default, this area in the right corner of the Status Bar displays the selected application's name.
When you hover over this area with your mouse cursor, a tooltip appears where you can check the nRF Connect SDK and Toolchain configuration status. Clicking either of the entries opens the Manage SDKs and
Manage toolchains menu action pickers, respectively.
The extension status item can also display warnings about a variety of configuration issues, such as:
- Uninitialized west manifest
- No SDK or toolchain selected or found
- Out-of-context project files (see also the following section)
In such cases, the selected application item changes color and you can hover over it to reveal the warning message.