Hi, I am thinking of converting from MS Outlook (Office365) to Thunderbird. One of the features that I use extensively is Outlook's colour categories, to distinguish between different categories of emails (e.g. client emails, emails relating to infrastructure, etc). This is used for filtering and sorting emails. Does Thunderbird support colour categories for emails and if so, if I use a 3rd party app to convert my OST files to the Thunderbird format (which I understand is MBOX), will the existing categories for my emails from Outlook carry over to Thunderbird?