| I can confirm that in Thunderbird 102 on Windows 11, you can use View -> Font Size via the menu. It changes all UI font sizes I could find. I don't remember if this setting existed in the 9x releases. The default is 12px. The max appears to be 30px. Changing font size only appears to change the UI font, not the message fonts, but it does appear to change all UI sections I tested. I saw increased font in the 5 major UI sections and the Settings section. When setting size to 30px, the the email panes looks mediocre, but usable. The icons do not increase in size, but the bounding boxes for text areas do, so things lay out approximately correct. It's clear this is not yet fully supported. The Address Book looks like garbage, and clearly has a layout bug. In the list of contacts, the selectable boxes around different contacts do not scale appropriately, and the text from one sits over the text from its neighbors. It functions properly, and the individual contact view is usable, so this may not be a deal breaker until its fixed. The other sections I use (calendar & tasks) look fine. I do not have any chat accounts set up, so I cannot test that section. Overall, I would rate it as a usable first step, but hopefully they do not consider it finished. As a minimum, icons need to scale with font sizes, and the padding between elements at high font size needs to scale, or at least have some breakpoints. |