Experiment labels

php.cms.label(fig, "Preliminary", data=True, lumi=138, com=13.6)         # loc=0: above the axes
php.atlas.label(fig, "Internal", data=True, lumi=140, com=13.6, loc=4)   # ATLAS layout, lumi inside
php.exp_text(fig, "CMS", "Simulation", loc=2)                            # any experiment name
php.exp_label(fig, "CMS", data=False, com=13.6)                          # adds "Simulation" when data=False

The loc positions follow mplhep:

loc	placement
0	above the axes: name and text on the left, lumi line on the right
1	inside the top-left corner, text beside the name
2	inside the top-left corner, text below the name
3	inside the top-left corner, text below, lumi line kept above the axes
4	the ATLAS layout: name, text and lumi line stacked inside

Sizes keep mplhep's ratios: the experiment name is 1.3× the text, the lumi line 0.77×. rlabel= replaces the generated lumi line with your own string, year= prepends the year, lumi_format="{0:.1f}" controls the number, com=None drops the energy.

Every label is a Plotly annotation, so it stays draggable in the editor and in editable embeds.