thunderbird_labels plugin for Roundcube Webmail

 Roundcube Webmail is a browser-based multilingual IMAP client with an
 application-like user interface. It provides full functionality
 expected from an e-mail client, including MIME support, address book,
 folder manipulation and message filters.
 .
 This package provide the 'thunderbird_labels' third-party plugin, which
 emulates Thunderbird's behaviour:
  - displays the message rows using the same colors as Thunderbird does;
  - label of a message can be changed/set exactly like in Thunderbird;
  - keyboard shortcuts on keys 0-5 work like in Thunderbird; and
  - integrates into contextmenu plugin when available.