Allow for arbitrary labels (and recognize existing) about roundcube-thunderbird_labels HOT 5 OPEN

Hi,

We also have the same demands mentions point 1 and 2.

Regarding 3: the situation ATM is, that as soon as there is more than one tag 
set the colored dot's cover the subject (1024x768). So an extra column would be 
nice, true.

4. the coloration of the whole mail is nice, but when you have more tags there 
seems to be no way to see those other tags as the mail will only have the 
colour of the most recently added label and the tabs which are there in the 
bullets-list don't show up in the message window any more. I think it makes 
sense to have those tabs shown in both settings.

5. when using colours instead of bullets and you have more than one tag set, 
the message should have the colour of the lowest tag in the list, not of the 
label most recently added

6. manual sorting of tags like done in TB with the "Tag Sequence Arranger" 
extension would be very handy especially with point 5.

Regarding the modification of the subject (as the default or instead of having 
their own column) I think it's not a good idea. Mail software should not modify 
the subject light-hearted. On the other hand - adding headers is fine (which is 
not important for us though).

Thanks for the good work. It already helps getting my work and life planned 
better.

Tom

  $rcmail_config['tb_label_custom_labels'] = [
    'LABEL1'=>'Custom Label 1', // 1 to 5 are predefined labels, overwritten
    'LABEL2'=>'Custom Label 2',
    'LABEL3'=>'Custom Label 3',
    'LABEL4'=>'Custom Label 4',
    'LABEL5'=>'Custom Label 5', 
    'LABEL6'=>'Custom Label 6', // 6 and 7 are custom labels
    'LABEL7'=>'Custom Label 7',
  ];