Adds a histogram image on the sidebar.
A sidebar histogram available on photo pages. Color and size of histogram image is configured through the admin page.
This module may be downloaded from the codex here.
To install, extract the "histogram_block" folder from the zip file into your Gallery 3 modules folder.
Afterwards log into your Gallery web site as an administrator and activate the module in the Admin -> Modules menu.
Configure the module: Settings -> histogram. You will be able to configure the colors and size. Save
