Select a source file and it appears in the preview pane, highlighted, with the language worked out from the extension or from the contents when the extension lies. When “just fix the one line” is the whole job, you can edit it there and save.
Ships
C-like languages, JSON, YAML, XML, SQL, CSS, Markdown, shell config, scripts and log files.
The editor writes back in the same encoding it read, so a UTF-8 file with a BOM stays a UTF-8 file with a BOM.
The launchers find the editors on your PATH and offer the ones you actually have.
The colours are checked, not eyeballed. The highlighting palette is measured for contrast rather than picked by eye.
An add-on is not sold on its own — a bundle is, and holding the same add-on through two bundles is never charged twice. See the bundles.
Nothing. The viewer is Stable and on by default.
Download File Manager, then pick the bundle that grants it.