Depth of all shadows. Higher value means darker shadow. Default: light themes – 0.5, dark – 1.0
Transparency of **headerText** or **headerLightText** in the tab navigation, header subtitles, etc.
A magic property that allows sharing wallpaper settings between similar themes. **0** – light, **1** – dark, **2** – exclusive to theme.
Set to **2**, if your color palette significantly differs from **parentTheme**, or if you disable default wallpaper while creating light theme.
Default wallpaper identifier. 0 means wallpaper is disabled by default. Hold wallpaper thumbnail in settings to know its identifier. For solid wallpapers set to 0 and edit **bubble_chatBackground** color.