Developer Options include:

- USB Debugging option.
- Stay awake (Screen will never sleep while charging)
- Running services.
- OEM unlocking (Allow the bootloader to be unlocked)
- Picture color modes (Use sRBG)
- Quick settings developer tiles
- Show taps (Show visual feedback for taps)
- Force RTL Layout direction (Force screen layout direction to RTL for all locales)
- Background process limit
- Profile GPU rendering
- Show all ANRs (Show App Not Responding dialog for background apps)
- Force allow apps on external (Makes any app eligible to be written to external storage regardless of manifest values)

Manually enable developer options for Android:

Go to Settings > About device > Build number. Tap Build number seven times. Go back to Settings where you'll find a Developer options.