我想在AccordionItem中配置滚动条。以下代码似乎没有任何效果。怎么可以这样做？
AccordionItem:
bar_width: '15dp'
bar_color: 0.14,0.35,0.44,1
bar_inactive_color: 0.14,0.35,0.44,1
bar_margin: '2dp'
id: '$acc_id'
title: '$acc_title'
font_name: 'Roboto'
image: '$acc_image'
text: '$acc_text'
min_space: 30
RstDocument:
id: rstcontent
background_color: 0.95, 0.95, 0.95, 1
text: '$rstcontent'
''')