Default cleaning option.
I've noticed that there are no settings for default 'Image Cleaning option'.
There should be settings for that. Otherwise, if I want a document to be grayscale on all pages I've to change the cleaning option for all the pages one by one.
There's another suggestion,
When changing the cleaning option for one page, long pressing on the option should provide with a menu to change the cleaning option for 'All pages' and 'All following pages'
