v1.4.3

This release significantly improves startup time for standalone versions. Annotation import is now more flexible, because CSV files without a type column are supported, and onset/duration values can be provided in samples as well as seconds. The app theme can be manually set to Auto, Light, or Dark, and menu icons can be toggled in the settings. Finally, the menu has been fully overhauled to provide a more streamlined and intuitive workflow.