v2.3.0

Features

• #321 Both the web and native runtimes use the same audio generator.
• Improved audio quality and performance on web.
• #353 Added attack peak volume param to tone (thanks @mun-ableton)
• #341 Implemented disk storage on native (thanks @JerwuQu)
• #357 Prefix disk localStorage key with the cart title on web, and add --html-disk-prefix param to w4 bundle (thanks @JerwuQu)
• #358 The way that w4 png2src orders the palette has changed again (thanks @JerwuQu):
  • For indexed pngs, it uses the order of the png palette.
  • Otherwise, the palette is sorted by color brightness.
• #369 Added arrow and button icons to the built-in font that games can display with text (thanks again @JerwuQu!)

Bug fixes

• Fix various audio bugs.
• #12 Handle WebGL context loss.

Other

• Added libretro ports to several new platforms: Nintendo DS, Switch, WiiU, PSP, PS Vita, iOS (thanks @phcoder)