user-1: IIUC first proxy option highlighted with blue is same as using -proxy in bitcoin.conf and second proxy option highlighted with blue is same as using -onion in bitcoin.conf
What is the use of checkboxes in the middle highlighted with red?


user113152: These GUI features were introduced in PR4587, and they are available in Bitcoin Core since v0.12. The data in the red box on your screenshot are read-only, and they provide users with the actual proxy capabilities. Each checkbox has an appropriate descriptive tooltip. Also you could check out the OptionsDialog::updateDefaultProxyNets() function in the source code.

-1: <p>IIUC first proxy option highlighted with blue is same as using <code>-proxy</code> in bitcoin.conf and second proxy option highlighted with blue is same as using <code>-onion</code> in bitcoin.conf</p>
<p>What is the use of checkboxes in the middle highlighted with red?</p>
<p><a href="https://i.stack.imgur.com/SZxHM.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/SZxHM.png" alt="bitcoin-core-proxy-options" /></a></p>
 113152: <p>These GUI features were introduced in <a href="https://github.com/bitcoin/bitcoin/pull/4587" rel="nofollow noreferrer">PR4587</a>, and they are available in Bitcoin Core since v0.12. The data in the red box on your screenshot are read-only, and they provide users with the actual proxy capabilities. Each checkbox has an appropriate descriptive tooltip. Also you could check out the <code>OptionsDialog::updateDefaultProxyNets()</code> function in the source code.</p>
