The phase information page allows for inspecting and renaming the phases. For the selected phase, the aggregation state is shown. Also shown is the name the phase as known to each property package to which it is mapped. If a property package does not appear in the list, data relevant to that phase cannot be calculated for that property package.
Hit the Rename button to rename a phase. Although not required for thermo version 1.1 and higher, it is advised to use 'vapor' for the vapor phase and 'liquid' for the 1st liquid phase.