EDIT

ref #6216 Added button to select color instead of clicking on color
field

• resized color field

Align label to the middle

Adapt labels for taxon node agent relation editing

ref #6216 Pre-select color in ColorDialog

fix #6216 Implement color dialog to change color of presence absence
terms

fix #6215: check for datasource when opening preferencepage

fix #5971: admin menu is visible only if connected and user has role manager

fix #6209: adapt the message if a datasource is not available

ref #5971: new main menu admin with cdm preference nomenclatural code and insert polytomous key node

ref #6198 removed synonym type combobox