Dark mode and Language

[picsky]

Hello，I have use this on linux for half a month.I just want to show my gratitude to you, in the same time,I must mention two request,

• dark mode
  I always use it in eveningWhen I first open it ,the white background bring severe light to my eyes,
• Chinese supported
  This is optional,but I have recommended it on a bbs that about linux system deepin.So if it supports Chinese,we will be very gratitude.
  Thank you.