Buttons are too narrow and this causes misclicks

[SerVB]

The buttons on the top bar (at least "back" and "save") and some other (like "dictionary", "suggestions", and "extra fields") – on the "add card" screen – are quite narrow, I sometimes miss them. Looks like in other Android apps, buttons have bigger heights.

For example, in the top bar, the buttons on the right and on the left usually have the full height of the bar.

Regarding the buttons inside the screen, I'm not sure about giving an example since they are quite unique. But maybe they could be taller too...