Yes, you can press Cmd-L on an external keyboard.

Without an external keyboard it's currently not possible to jumpt to a specific line, but you can drag the vertical scrollbar to quickly move in the file.

If you have a HTML file that references that JavaScript file and then preview the HTML file, then you should see the console message of the referenced JavaScript file in the web preview.

You can see messages created by console.log() calls in Textastic's web preview screen. 

See https://www.textasticapp.com/v10/manual/viewing_editing_files/web_preview.html#javascript-console

Can you please provide step-by step instructions so I can reproduce the issue? Alternatively, a screen recording video would help. Thanks!

Are you sure that is the GitHub Light theme? 

When I look at https://github.com/ryan-roemer/sphinx-bootstrap-theme/blob/master/sphinx_bootstrap_theme/__init__.py the website on the GitHub website looks different than your screenshot.

Textastic already includes a GitHub Light theme that looks similar to what I see on the linked GitHub website.

Here is a screenshot of that theme in Textastic:

Compare that to the GitHub website:

Messages and Facetime on Mac also use a similar style.

Hello,

I've downloaded your screenshot, zoomed in and looked at it. It looks find to me. There's a drop shadow behind the "T" and the "T" has a rounded appearance - but that's intentional, it's not blurry. Please compare this to the the Mac App Store icon which is very similar.

What did you try?

The important part is to make sure that your HTML and JS file is stored in the same folder somewhere in "Local Files", "iCloud" or in a folder added using "Add External Folder…". 

Also, make sure to use regular quotation marks for the src attribute:

<script src="script.js"><script>