v0.9.0

• Updated iced (our GUI toolkit) by 6 minor versions - if you see any graphical problems, please let us know
• iced now features a fallback software renderer, meaning ESLauncher2 should now work on almost any machine, including those that can't even run Endless Sky
• iced's theming support also changed, so expect a few colors to look differently
• tabs are now implemented differently (they still work the same)
• progress bars use human-readable units (MiB)
• plugin icons have been re-enabled
• improvements to the music system, including the ability to pause music for good (@Koranir)