Determines if the theme is dark and should be used at night.
Prefer changingIt is preferable to change **parentTheme**, instead of overriding this property.
141
確定主題是否為深色及適合於晚間使用。
建議更改 ** parentTheme ** 而不是覆蓋此屬性。
52/141
Tony Wong,
Dec 13, 2018 at 14:29