Custom/Decrease horizontal padding for reading text

[NebulaXS]

This would greatly improve the overall experience of the app, if you could add the ability to modify the horizontal padding of the reading text. It would also improve readability and it helps users focus, reducing excessive white space or cramped margins. And also ensures optimal text layout on a range of screen sizes, from compact phones to tablets.

Just like you already have the options to change the Typeface, Font Size and Line Height for that text, it would also be great to have this option to decrease and increase the horizontal padding for that text too.