Thanks for this graphic improvement, it was needed! The program also seems much faster in opening and more responsive in general, congratulations! I found a small bug I think and I would also like to take the opportunity to give some suggestions about the program. The bug is with the calendar. When creating an event you can place it in several pre-established categories, each of which had a different color in previous releases. Color which was then also displayed in the box created on the calendar, through a colored line which helps the eye to identify different events. But in 115.0.1 this feature is buggy, all categories have the same color and the colored line is not displayed on created events. Suggestions: 1) Instead of a small colored line it would be useful if the whole box of the event created in the calendar were colored in the chosen colour, it would be more functional for days with many close events and also more aesthetically pleasing in my opinion. 2) In thunderbird you can customize folder view with various columns. Once the first folder has been customized, you can copy the same setting and apply it to other folders and subfolders, there are two special functions to do this, but there is no way to apply the setting to all folders at once! It would be extremely convenient in all those thunderbirds that have many configured mailboxes. 3) The date column should never be shortened when resizing thunderbird from full screen to custom size or side view with other programs. All the other columns if resized do not have much impact on the user experience, you often understand the subject even by reading only the first three words, you often understand the correspondent even by looking only at the first 5 letters, but in my opinion the date column should be always fully visible, time included. 4) Please allow donations in Bitcoin, free software for free software. Thanks again for your work, we love you! :)