[G2 Themes and Apps] Heatshiver:
What's New:

"The app itself is more useful, time to focus is improved, low-light performance is better, etc. It's not perfect, but it's definitely an improvement. It seems like LG balanced things out. The video bit rate has been reduced, min fps increased, image quality increased, sharpness increased, audio bitrate increased, and more. Many of these changes are also in [MENTION=4972367]Jishnu Sur[/MENTION]'s excellent mod, but with different values. Buy that guy a beer. He's been working on this camera for some time without even owning the device (and therefore without any of the benefit of the increased performance).

Included in the zip are a number of updated libs that deal with post-processing. If you use panorama, effects, etc. they may be improved with this. I don't use them much so I only verified they still work. Some of them (particularly some of the render script support libs), seem to be more for the stock Google gallery app and weren't even included in the VS98011A rom, but I figured it wouldn't hurt to include them in case the newer gallery app uses them." - xdabbeb

Instructions:

1) Do a backup in recovery, or backup the original files to be overwritten (check ZIP for names).

2) Flash.

AOSP

1) Flash.

NOTE: If these work on your variant and it's not on the list below, let us know so we can add it.

STOCK ROM

DOWNLOAD - Deodexed

DOWNLOAD - Deodexed (Mirror)

AOSP-based ROM

(EXPERIMENTAL)

DOWNLOAD - v2

DOWNLOAD - v1

AOSP-based ROM Notes

The low-light FPS increase may not be in effect.

Burst is not working (but is available and may cause issues).

The intelligent auto does not work in low-lighting.

FC occurs when switching to front-camera, or using Panorama settings.

Confirmed Variants for Stock:

F320KE11

VS98011A (VZW)

D802A

D802B

LS980 (Sprint)

D800

Confirmed Variants for AOSP-based:

D802B

D803

D800 (AT&T)

LG Optimus 2x (P990)

Confirmed ROMs for Stock:

Stock rooted on all confirmed variants.

Malladus (VZW)

Grievous (D800)

Confirmed ROMs for AOSP-based (4.3):

AOSP

HeatshiverSX (AOKP)

OSE (VZW)

Carbon

PACman

PA

Slim ROM

CM10.2

Confirmed ROMs for AOSP-based (4.4):

PA

Gummy (VZW)

CM11

SlimKat

LucidPhusion

Create a Flashable ZIP Backup

1) If you would like to make a ZIP backup simply download the ZIP file for the update and make a copy.

2) Download a file explorer like ES Explorer or Root Explorer.

3) Open up the update ZIP and look at all the names of the folders, those will be mimicked in your phone's system folder.

4) Check the files within the folders of the update ZIP and note all the names, these will also be mimicked in your phone.

5) Use your file explorer and copy all the mimicked files in your phone to your SD card.

6) Connect your phone to your PC.

7) Move all your files to somewhere easily accessible.

8) Open (do not extract) the update ZIP copy with 7z or WinRAR.

9) Go into each folder (except META-INF) and copy over the files from your phone to the update ZIP copy.

10) Once you are done you now have a flashable ZIP to revert back to your previous state.

Camera NOT Showing in 4.3/4.4 Fix

If the AOSP camera is not appearing in the app drawer, first stop the camera that comes with the ROM, clear that camera's data, and then disable it. Reboot the phone and the AOSP camera should now be present. If it is not, then it is likely disabled. Re-enable it and that should get it to display.

Credits: xdabbeb, sefnap, Jishnu Sur