When loading a new blend file, close open menus, show "waiting" cursor,
and display the preview thumbnail filling entire window.
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This is an alternative to {D10484}. Instead of showing a "Loading" dialog it shows a blurred version of the thumbnail image across the entire window. It is especially pretty when you have set "File Preview Type" to "Screenshot" in Edit / Preferences / Save & Load:
{F12967762,width=100%}