Pressing alt-p with a custom palette selected currently does "nothing," but actually changes the Tumblr-selected palette that is being overridden.
On the one hand, for developers this is excellent for testing what hilarious things happen when you apply a regular palette over vampire or pumpkin; on the other hand, this could be improved to either do nothing or to navigate through the extension's palette choices for regular users.
Pressing alt-p with a custom palette selected currently does "nothing," but actually changes the Tumblr-selected palette that is being overridden.
On the one hand, for developers this is excellent for testing what hilarious things happen when you apply a regular palette over vampire or pumpkin; on the other hand, this could be improved to either do nothing or to navigate through the extension's palette choices for regular users.