How to make the text more readable

So I imported all my kindle book highlights via the watched folder feature.

There are about 1000 notes and they are all read-only because of they are imported via the “watch folder” feature.

I was wondering if there is any way I can make this text more pleasant to read?

Cool, nice question. You can take a couple of approaches.

Under Edit/Setting you can adjust you defaults:
image

You can also highlight the text

You can reside the text:

Under Format you can show the ruler:
image

Then, once you’ve thoroughly messed it all up and you want to go back to your document defaults you can go back up to format and reapply the standard font and size (hot keys work geart).
image

Note: select all of $Text, or a select section before using these. In the Style menu, Standard Font resets the (selected) $Text to the inherited or locally-set values of $TextFont and $TextFontSize.

The original posts screen grab looks like Markdown (or some flavour of it), but not knowing how the highlights were extracted from the Kindle, it’s difficult to know the source format. What app/feature/API is creating the source files. (For my eye, the lack of contrast in the original screenshot and its small size, make the Displayed Attributes values quite unreadable).

If your doc has no export templates configured, add the built-in Hints container and view the doc in Preview mode as the Markdown in the $text will render in a manner you will find useful.