Unless there is a reason I'm not aware of:
Expected result:
Select image or slot and review its rotation value.
Use rotation tool and see the rotation value update.
Actual result:
Selecting a image or slot the rotation value field goes blank, but not disabled.
The value can not be seen for review, but can still be changed.
Using the rotation tool rotates the image, but the value is still not shown.
Selecting a bone displays the rotation field value, but selecting a image again hides the value field again.
current version: 1.6.40