Request: Add user settings for overriding blobElem.style values

[AndydeCleyre]

It would be great to be able to change these style settings in the extension's preferences, particularly:

• font-size
• background-color
• color
• font

But maybe in order to get everything looking right after changing those values, it's also necessary to change the paddings and line-height, etc.

So the request is to generally be able to override blobElem.style values in the addon preferences.

This is an accessibility issue, to make the blobs easier to read and identify.

[ivanivkovic]

I'd love this as well