I’ve just installed 6.3.2.2 (the version currently on the main download page) to discover that the sheet tabs now take up approximately double the screen estate they used to. While this is probably a nice thing for those with poor eyesight, where is the option for the rest of us to turn this off?
For my needs, the 1-2 rows fewer of data and now-required horizontal scrolling of the tab bar (my most used spreadsheet has 19 tabs) mean the 6.3 GUI is a significant downgrade on 6.2.
edit: This is on Xubuntu Linux, none of my system settings have changed since upgrading.