Purpose

To allow 1-step changes to map legend, across all English-language Wikipedia articles that use this template.

Usage

To add to an article, add the following code:
- ((Same-sex marriage map Europe|(align=left)|(size=upright=1.25)))
  - align= and size= are both optional. If not used, image will default to right-justification and "upright=1.5" image size (50% larger than user default).
Changes to this template may not show up immediately in various articles due to server caching. You can bypass this by purging the server cache while on an article page. For quick access to purging functions, activate the UTC live clock or Purge tab gadgets in your preferences.