AutoGamma is an accessibility addon that provides the player with the ability to change their gamma on a per-map basis (with auto prompt support for instances.)

This was written for ellwynbrook, but is setup for anyone to use!

Features

Offers an intuitive interface to help the player choose a gamma that works best for them.
The gamma value will change and revert automatically.

Settings

Auto Prompt - The addon will prompt you about changing your gamma when entering an instance for the first time.

Main Window

The main window is where the player can adjust the gamma for their current map.

Auto Prompt

When entering an instance for the first time, the player is prompted on whether they want to adjust their gamma for that instance or not. Your decision is remembered for either choice.

To change the gamma for that instance going forward, you will need to access the main window when in that instance.

Accessing the AddOn

The addon can be accessed a couple different ways:

Via slash command: /autogamma (or /autogamma settings to access its settings)
Via the addon compartment in the top right of the screen (shown below).

Left-click the AutoGamma entry to open the main window.
Right-click the AutoGamma entry to open its settings.