I worked at a software company for shipping terminals. One release, we changed the color of a snowflake icon for better colorblind accessibility. The union sa

I worked at a software company for shipping terminals. One release, we changed the color of a snowflake icon for better colorblind accessibility. The union said it was brand new software and the terminal had to do an emergency shutdown for a week to retrain. On the same software who's only difference was that it had a different icon color.