Contact Sheet Improvement

[quaid]

Hi Pierre, hi all
Thanks for your great work in XnView
Can you imrpove contact sheet option with

--- window preview progress ---, so when I increase row or columns I can view istantly what I'm doing
--- images dpi select ---, for large images ( like 5 Mb ) the contack sheet looses quality, for example hair appear distorted in contact sheet I think like miss an anti-alias function or the engine never resize optimally the photos
--- contact sheet title, for add a title or not
--- background image, background color already exist
--- thumbnail shadow, optionally

What do you think about ?