The Overview screen is where you can view overall stats of your current gangster.

Overview

This area shows your gangster's general stats, most are self-explanatory.

Some stats have more in-depth data available:

Level points sources: Press the pie chart icon next to your level points to see the break down of where you've earned your level points. The table tab of this window splits your level points into "Earned" and "Bonus" level points, where the latter is points gained through modifiers such as Double XP.
Level point history: Press the history icon next to your level points to see a graph of your level points over time and the amount gained each day.
Bullets sources: Press the pie chart icon next to your bullet count to see the break down of where you've acquired your bullets. This excludes Trade Center, RPS and Horse Racing currently.
Bullets history: Press the history icon next to your bullet count to see a graph of your bullet count over time and the amount gained each day.

Stamina

Stamina is an anti-cheating measure designed as one of several measures to help protect the game against automation and account sharing.

Over 99% of players are unaffected by stamina, however you can read more about the measure here.

This tab shows the accolades you've earned for completing various tasks on your current gangster.

These accolade also show on your public profile.

You can find details about each accolade here.

This tab shows your history, both in the current round and previous rounds.

You can toggle whether each gangster is shown publicly (on your current profile) or kept private.

At the bottom of the screen, there are buttons to toggle all gangsters at once.