I hope there will be a bbcode to highlight a block of text (with background color), like vBulletin does. This will make it more noticeable.

You can just make a custom bbCode to do that.

How to do it?

Its quite simple really.

AdminCP->Management->Add New BBCode

Custom BBCode Title: Highlight (or anything you want to call it)
Custom BBCode Tag: highlight
Use Option in tag: Yes
Custom BBCode Replacement:

<span style="background-color: {option}">{content}</span>

That should do it :)

Thanks but this way requries you to enter color code manually and if you select a block of text and change the color then you need to remove the color open and close tags.

There should be a easier way like vBulletin.