Trellists: Trello Lists Master is a Chrome extension that allows users to hide and show lists on Trello boards. Trello.com is a great tool, but managing a large number of lists can be challenging, requiring horizontal scrolling. This extension solves that problem by adding a convenient bar at the top of the screen, displaying all existing lists. Users can easily hide or show lists by clicking on their names in the bar. The status of each list is represented by color, with hidden lists shown in grey and visible lists in white.

Updates to the extension have been made to improve its functionality. The most recent update, version 2.8, removed unused permission 'storage'. Version 2.7 made a minor change by removing the useless 'tabs' permission. Version 2.6 fixed an issue where the status of a list wasn't restored from localStorage when switching to a new board and then back again. Version 2.5 fixed a bug with single quotes in list names that blocked any operation with lists, improved the speed of menu rendering, and implemented menu updating on list archive/move. Version 2.2 updated the extension to work with the newest changes in trello.com layout.

Overall, Trellists: Trello Lists Master is a useful Chrome extension for Trello users who struggle with managing a large number of lists. With its simple and intuitive interface, it provides an efficient solution to the problem of horizontal scrolling and makes list management easier.