message: Fixed: return 0 if input value is empty string.
diff: @@ -18,13 +18,13 @@ dmc-colorpicker.Colorpicker
  .Colorpicker__colorcodeHex {color.format}
  virtual(if="{ color.format === 'RGBA' }")
  .Colorpicker__inputContainer
  - dmc-numberinput(number="{ color.value.split(',')[0] }" max="255" min="0" onChange="{ handleInputRgbaRedInput }")
  + dmc-numberinput(number="{ generateRgbaValue('red') }" max="255" min="0" onChange="{ handleInputRgbaRedInput }")
  .Colorpicker__colorcodeRgba r
  .Colorpicker__inputContainer
  - dmc-numberinput(number="{ color.value.split(',')[1] }" max="255" min="0" onChange="{ handleInputRgbaGreenInput }")
  + dmc-numberinput(number="{ generateRgbaValue('green') }" max="255" min="0" onChange="{ handleInputRgbaGreenInput }")
  .Colorpicker__colorcodeRgba g
  .Colorpicker__inputContainer
  - dmc-numberinput(number="{ color.value.split(',')[2] }" max="255" min="0" onChange="{ handleInputRgbaBlueInput }")
  + dmc-numberinput(number="{ generateRgbaValue('blue') }" max="255" min="0" onChange="{ handleInputRgbaBlueInput }")
  .Colorpicker__colorcodeRgba b
  .Colorpicker__inputContainer
  dmc-numberinput(number="{ generateAlphaValue() }" max="100" min="0" onChange="{ handleInputAlphaInput }")
  