use `gxDashRect()` to shade twitted messages instead of doing it pixel by pixel
tree485473d82e91a2333499718219fcf339e3ea26d7
-rw-r--r-- 4522 addrbook.d
drwxr-xr-x - chibackend
-rw-r--r-- 932 chievents.d
-rw-r--r-- 118450 chiroptera.d
drwxr-xr-x - databin
-rw-r--r-- 21503 dialogs.d
-rw-r--r-- 42664 receiver.d
drwxr-xr-x - sqbase_experiment