Some people are reporting graphical glitch that looks like that:
Basically what is happening is that a wrong texture is used to draw the inventory background.
If you have the same or similar issue (where a wrong texture is visible somewhere) can you please let me know and tell me your device name and Android version?
Android is a quirky platform – I tested the game on more than 10 different devices from my pile, and nowhere I’ve seen any problems. But apparently that is still not enough! How many do I have to buy?