Version 1.3.* has some changes in message list layouts.
The changes are based on user feedback ("the app looks obsolete", "why no look like dis other app", "make it minimal, like the iPhone"), that sort of thing.
Specifically:
1 - Contact images are enabled by default, so are colored letters ("chips").
2 - When contact images are shown, per-message checkmarks are hidden.
3 - Each message item has larger empty margins, top and bottom
These changes can be reversed via app settings:
1 - App settings -> message list -> turn off "contact images" and/or "color chips"
2 - When the checkmarks are hidden, please tap the contact image to select messages one at a time (actually, the active area is larger than just the image). Turning off contact images brings back the checkmarks.
3 - App settings -> message list -> turn on "slim margins". This will fit more messages on the screen at a time, just like before.
