color-picker

Really love this library, especially all the accessibility considerations built in! One thing I've noticed in implementing it though is an error from accessibility validators for a missing aria-valuenow property on both the Color and Hue sliders.

I had an explore of the MDN docs for the two properties

When creating an instance with swatches

$('#in').minicolors({
  swatches: ['#0000ff', '#ff0000']
});

updating it with a shorter array of swatches

$('#in').minicolors('settings', {
  swatches: ['#ff00ff']
});

causes an exception of the form:

Uncaught TypeError: Cannot read property 'match' of undefined
    at isRgb (?editor_console=true:1447)
    at init (?editor

I think we should validate the text fields and indicate invalid/unsupported input somehow. Maybe making the text field have a red border.