remix-project/apps/remix-ide/docs/solidity_editor.md

Solidity Editor
===============

The Remix editor recompiles the code each time the current file is
changed or another file is selected. It also provides syntax
highlighting mapped to solidity keywords.

![](images/a-sol-editor.png)

Here's the list of some important features:

-   It display opened files as tabs.
-   Compilation Warning and Error are displayed in the gutter
-   Remix saves the current file continuously (5s after the last
    changes)
-   +/- on the top left corner enable you to increase/decrease the font
    size of the editor