Set "show on screen" amount on theme activation for posts and pages lists.

Hey all,

For productivity purposes I included some “update_option” statements in functions.php that run on activation of my framework-theme I use to create WP sites.

One example is: update_option( 'default_post_edit_rows', 25 );

There is one option I would really like to set on activation that I can’t find how:

It’s the Screen Options > Show on Screen setting that is set to default to 20 for posts and pages and just about every backend wordpress list of anything.
I would like to set it to something that avoids pagination in most cases, say 100 instead of 20.

Any help is mighty kind!