The variable names here need to be adjusted.

msg_partititoning_zfs="Auto (ZFS)"

For example should be:

msg_auto_zfs="Auto (ZFS)"

So that when used in code, the code reads like the text. Also, when searching the code, one can prepend "msg_", change to lower-case, and replace non-printable characters and spaces into underscore to find uses of the text.

Also, should the text be re-usable elsewhere, it is not tied to the partitioning menu. This is so that when someone performs international translation, fewer translations have to be made. For example, there is no reason to have:

msg_partitioning_shell="Shell"

When the following will do:

msg_shell="Shell"

Which makes any singular occurrence of the word "Shell" accessible under the "msg_shell" variable. Unnecessarily localizing individual words and phrases to a particular dialog, function, or module creates duplication and extra work for translators.