[Nexus 4 Original Android Development] RealSlimShadyMC:
A guide to mahdi ROM:

Mobile networks: allows you to tweak things related to the radio, E.G. mobile data, network type.

Sound:

quiet hours - mutes notifications and alerts during set times. Doesn't include alarms.

Volume panel type - changes volume popup, according to the setting selected

Advanced options for volumes - allows you to tweak things related to the volume keys or when sound plays e.t.c

Less frequent notification sounds - mutes notifications for apps that have already displayed a notification within the set time

Display:

Rotation - allows you to set allowed rotations

Screen recorder - allows you to change things related to screen recording (volume up plus power)

Battery light - activate notification LED while charging or low power

Notification light - does what it says on the tin

Volume button wake/wake up on charge - self explanatory

Battery:

Battery saver mode - disable certain settings during set hours or low battery (configurable)

Low battery warning - self explanatory

Profiles:

enable and disable settings for different profiles, which are configurable and selectable.

Security:

Custom lockscreen options:

Notification peek - shows latest notification(s) when picking up device

Lock screen wallpaper - allows you to set an independent wallpaper to the system one

Battery status - show/hide battery percent text above lockring

Battery level around lock ring - self explanatory

More style options - colour tweaks for lock screen items

Slider targets - set extra actions to lock screen slider, apart from just unlock

Eight slider targets - shrinks slider targets and allows 8 to be set on total

Slider torch - uses camera flash as torch, double tap and hold

Shortcuts - again, allows extra commands to be added to lock screen

Privacy:

Privacy guard - allow/disallow certain permissions to newly installed apps

Blacklist - disallow calls and texts from certain numbers

Accounts:

Sync disabled by default

Dark UI:

replaces greyish holo look with solid black

Themes: CM11 theme engine

Customisation:

System bars - settings related to navigation bar, status bar (icons and items), double tap to sleep on status bar, activity indicators (download/upload speed and status), SlimPIE settings, navigation bar master switch, navigation bar buttons, ring targets (swipe up from navbar), navbar height in portrait and landscape, left handed mode, show navbar on bottom in landscape mode, immersive mode settings, and the ability to disable immersive mode on lockscreen.

Quick settings panel:

Quick pulldown - allows you to go straight to quicktoggles from swiping down

Smart pulldown - skip notification page and go straight to quick toggles if no notifications present

Auto close panel - exits notification panel once notifications are dismissed

Vibrate on touch - vibrates when quicksettings are toggled

Tiles and layout - allows you to configure quicksettings page

Sound modes - configuration for sound quicksetting

Network mode - config for network quicksetting

Screen timeout mode - config for screen timeout tile

Style settings - colour settings for quicksettings

Dynamic tiles - tiles that appear only under certain conditions

Notification drawer:

Shortcuts - app shortcuts on bottom of pulldown

Brightness slider - sliding along notification bar changes brightness

Hide notification labels - show/hide wifi/network labels

Quick access ribbon - touchwiz - like settings in notification drawer

Background style - notification drawer wallpaper

Contextual notification panel header - shows sun/moon type picture at top of notification drawer depending on time of day

Notification reminder -reappearing notifications

Multitasking:

Switch between slims recents and stock

Clear all button (stock)

RAM bar (stock)

Power menu:

Enable/disable items which appear on power menu (hold power for 1 second)

Lock screen: same as setting in Security menu

Animation control - change system animations

Driving mode - enable/disable spoken notifications while driving

Kernel settings: settings related to the kernel (don't touch if you don't know what they do)

Developer options: settings for developers only, including runtime changer, and chamber of secrets (hidden by default)

Superuser: related to the open source super user

Built in apps:

-Apollo music player

-Documents

-DSP manager

-omniswitch

-sound recorder

-terminal emulator

-torch

[MENTION=4593553]Mahdi786[/MENTION]

I wrote up a guide to all settings, feel free to change anything, and I'd appreciate if this got added to the OP for new users to read. I'll update this post when new builds are out