Cross-references, highlighting, to-do lists

Scrivener is the best program for those who write!
However, it could become even better…
There is a strong need for the ability to highlight colors in images, as it is done in OneNote.
This feature is also lacking for PDF documents.
It would also be nice to have the ability to create cross-references within documents rather than linking to separate documents.
Additionally, it would be nice to add the ability to create to-do lists with checkboxes in Synopsis.

You might try searching the forum before posting feature requests in the future, as most of this has been discussed: