Show datapoints on borders of ternary scatter plot

fig = px.scatter_ternary(team19, 
                         a=0,b=1,c=2,text='Team',
                         size='WBLPG',
                         hover_data=['Team', 'GP', 'PTSPG', 'SEFF','eFG', 'WBLPG', 'PPP'])

fig.update_layout(font=dict(family="Courier New, monospace",size=10))
fig.show()

How can I modify the ternary scatter plot to show the data points on the borders completely?