New features:

• arrows in the room panel let you move between adjacent rooms
• make resizing less destructive
• experimental support for custom scripts
• "more info" links at the bottom of panels that point to the relevant wiki page

UI Refresh:

• room/sprite/etc names are now buttons that let you access the extras menu, which is also where you can rename stuff now
• use text labels in the extras menu to avoid confusion about what icons mean
• move some panel elements to the top (the ones that are properties/settings)
• move back button to the header bar
• the sprite list at the bottom of the room panel now works like this: press a sprite once to select it, press it again to edit it
• the music and palette selection overlays in the room panel work like this: press the current music/palette item to edit it, press a different music/palette to make it the current one

Misc things:

• change default room size to 12x12 to be easier to edit on small screens
• bug fixes