High contrast

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Provides a quick solution to allow the user to switch between the active theme and a high contrast version of it.

Just install the module and press tab on your keyboard. "Toggle high contrast" link will appear after first or second key press. Click it or press enter. You're now in the high contrast mode. You can return to normal view following the same steps.

Demo

There is a link on the sidebar - Try out a demonstration - that refers to simplytest.me environment. After Drupal is up and running follow the steps described above.

About

Taken from https://drupal.org/sandbox/acontia/1281604 due to the fact that original sandbox was 2 years old and never touched after its initial creation.

For people facing update problems coming from Beta2 or Beta3, please refer to #3124966-8: Circular reference in theme_handler

For developers

For developers I've created Lando setup to init the project locally. The project is located here: https://github.com/hkirsman/lando_drupal_module_high_contrast (8.x-1.x for D9, 10.x-1.x for D10 and 7.x-1.x for D7). Check its readme for further instructions.
In D7, probably if you're developing the module then you want to remove the web/sites/all/modules/contrib/high_contrast folder and rather do git clone in the same location:
git clone --branch 7.x-1.x [email protected]:project/high_contrast.git