Allow removing progress label

[MLNW]

Hey, I was trying to add a new chart element for meetings. Meetings can be completed or not but. I want to model this by filling them with another color when they are completed. This works mostly.

The problem I am facing is that I cannot remove the progress label altogether for all chart elements. Currently, I work around this by using this:

\ganttmeeting[progress label text={}]{Kickoff}{22.01.21}

I want to disable the progress label text for all meetings though.

Here is my definition of a meeting:

\newganttchartelement*{meeting}{
    meetinguni/.style={
        shape=circle,
        draw=black,
        fill=blue,
        thick,
    },
    meeting left shift=.25,
    meeting right shift=-.25,
    meeting inline label node/.append style={
        anchor=south west,
        font=\scriptsize
    },
}

I tried to set the font to 0pt, and I tried to add a key like this:

meeting progress label text={}