Sunburst plots override font size and don't position unreadable labels outside

Hi everyone,

just discovered sunburst plots and am loving them! Besides the problem of text orientation that is momentarily being solved, I am wondering why it is possible to style outsidetextfont but not possible to actually place text outside the chart (at least for the last level). Similarly to pie charts, I would expect to find a textposition = 'outside' parameter. At the moment, for tiny wedges, the labels are being squeezed in no matter what, ignoring the font sizes given in insidetextfont AND textfont. Example:

import plotly.graph_objects as go
data = pd.DataFrame.from_dict({'key': {0: '#iii',
  1: '#vi',
  2: 'I',
  3: 'III',
  4: 'V',
  5: 'bII',
  6: 'i',
  7: 'ii',
  8: 'iii',
  9: 'iv',
  10: 'v',
  11: 'major',
  12: 'minor'},
 'duration': {0: 4.0,
  1: 12.0,
  2: 85.0,
  3: 202.0,
  4: 4.0,
  5: 4.5,
  6: 655.0,
  7: 5.0,
  8: 4.0,
  9: 33.5,
  10: 54.5,
  11: 295.5,
  12: 768.0},
 'parent': {0: 'minor',
  1: 'minor',
  2: 'major',
  3: 'major',
  4: 'major',
  5: 'major',
  6: 'minor',
  7: 'minor',
  8: 'minor',
  9: 'minor',
  10: 'minor',
  11: '',
  12: ''}})
fig =go.Figure(go.Sunburst(
    labels=data.key,
    parents=data.parent,
    values=data.duration,
    branchvalues="total", 
    textfont = {'size': 20},
    insidetextfont = {'size': 20},
    textinfo = "label+percent parent",
    #textposition='outside' <-- this option is missing
    ))
fig.show()

まず、提供されている Python の再現コードを go.Sunburst で実行し、issue で言及されている pie-chart の挙動と、ラベルの配置およびフォントサイズの挙動を比較します。sunburst のラベルオプションを追跡し、外側への配置、小さなウェッジ、textfont/insidetextfont に対して期待される挙動を判断します。報告された例で、要求されたオプションとサイズ調整の挙動が機能すれば完了です。