This module displays an indicator of the current environment. Currently it supports three sorts of environments (local, development and production). The module offers a configuration page where the different environments are controlled via their IP-adress. This differentiates Environment Control from similar modules.
Road map
Some more settings will be added to allow more customizations over the display.
I also plan to make use of the functionality with submodules or projects that will use the functionality that differentiates environments.
Similar projects
Environment Indicator saves the environment as custom text to be displayed. Environments are separated by editing settings.php.
Development Banner does its control via the host name.