Thanks to Thorsten for finding a solution

Single, double and triple right click start the selection. The selected
text is copied to the X11 selection buffer.

Refactored mouse click handling for this feature.

With this option and background_color_fullscreen you can freely configure the color of your liking.

Default key binding: F9

Allow user to manually add entries to the jump list. Similar to m in
vim.

This is useful for reading documents that have a cover page in a book layout.

Every time a jump occurs its origin is saved. You can then move through
those saved positions, e.g. to return to the table of contents after
having read a section.

This feature is not yet finished, essential features like opening a
second window are not done.

Layouts don't get destroyed on layout change anymore. Instead, a
cur_layout pointer is set. Common attributes are copied over, the rest
is persistent (e.g. zoom, offset, ...).

Search case-sensitive, if search term contains an uppercase letter, else
search case-insensitive.

Configure via background_opacity setting. Always draws fully opaque when
in fullscreen.

This is useful when editing TeX documents. If there is an error
somewhere and only a part of the file was generated the position will be
the same after having fixed the problem.