Hi,
This Is Paul from KP Powerways India, I am glad to check out the new feature to adjust the logo size which has become an ease for editing our templates.
My suggestion to this is, instead of putting a slider you can put Numeric values for size, This will minimize the difference in look between all documents.
For example;
If I have selected font
size 5 for Invoice i can select the same for all my templates.
So that the all the documents have the same size of logo.
Hope you understand my Suggestion/Query.
Waiting for your valuable reply.
Thanks and Regards
Paul Chavan