Version 1.18

• Update icons
• Code and build update by @TacoTheDank

Version 1.17

• Add spectrum hold

Version 1.16

• Add dark theme

Version 1.15

• Trap audio exceptions
• Fix #15, possible race

Version 1.14

• Update timebase menu
• Update about dialog

Version 1.13

• Add Material theme
• Add spectrum trace fill

Version 1.12

• Fix audio exception

Version 1.11

• Convert to gradle build
• Slow down spectrum frequency/level display
• Fix handler bug
• Update icons

Version 1.10

• Update menu for large devices
• Fix obscure spectrum display bug

Version 1.09

• Add help screen to spectrum