version 2.0.5
- seems the crashes when the settings activity starts are fixed (crash reports greatly appreciated)
- added new shader program 'hs20. noise 3d fly through'
- in some shaders, the 'timescale' preference can be negative

version 2.0.4
- Added the 'Tap to set the wallpaper' button to exclude the misunderstand the application lifecycle.

version 2.0.3
- Fixed change display orientation issue
- Added 3 new shader programs