Cleaned settings.js
Added Tumblr support for previews
Re-ordered/Re-did default options
Added a "Welcome" screen + re-ordered the options on the Options page
1.0.0 !
Now better handling the tweet-detail case to avoid displaying media previews when Twitter cards are here
Modified createPreviewDiv to handle properly multiple calls at once and allowing to create "true large" previews
Fixed options (typo, logic)
1.0.2