I have the Events module that came with 4.3 installed and had updated the various style sheets.  For example, my portal.css has an entry for .Event with the width: 100%.  I have also installed a custom skin to control the containers, etc.  After I updated to the new version of Events, I am getting the standard blue container and am not getting the 100% setting from my portal.css.  In the Events module settings, there is now a Theme/Skin.  I have set it to Default, since the only other options were Fixed Blue, Gray and Small.  I had assumed if I said Default, it would pick up the skin for that page.  I also tried setting the Module Container in the Page settings to my custom skins, but to no affect.  Can you please explain how I can get control of the look and feel I had previously?  Thanks.

Look at the "Themes" directory (in the events module directory)...you can now create different themes for different instances of the module.