Which apps are this? I'd like to take a look at how they solved this.

The search results currently use a 12 point font which might indeed be a little small. I'll look into it.

But, the font scales with your Dynamic Type setting. 

Consider temporarily increasing the dynamic type size:

1. Open the Settings app.
2. Tap Display & Brightness.
3. Tap Text Size.
4. Use the slider to adjust the text to your preferred size.

You can also add the Text Size widget to Control Center for quick changes while using apps without switching to Settings.

Did you see that you can add custom code completion, syntax definitions and themes? Sublime Text 3 and TextMate 1 syntax definitions are supported.

For syntax definitions and themes:

https://www.textasticapp.com/v10/manual/customization/custom_syntax_themes_templates.html

Code completion (includes the existing code completion definitions):

https://github.com/blach/Textastic-Customization

Unfortunately the currently used JavaScript syntax definition doesn't seem to support the object spread operator.

I'll need to update the syntax highlighter to support more modern syntax definitions (Sublime Text 4) to fix that. This is planned for a future update.

For now, I can only ask you to ignore the error indicated in the code editor.

Thanks for your bug report. Can you give me a list of steps to easily reproduce the problem? Do you see the problem with other commands, too?

Also, in the static screenshot it's hard to see the problem. A screen recording video would make it easier.

I've sent you a TestFlight invitation so you can try the beta of Textastic 10.7.3 which should fix this issue.

It only happens when you are zoomed in to the view. It will be fixed in the next update.

Thanks for the video. With these settings I can reproduce it!

What font size are you using and have you zoomed in when this happens?