Color picker for the agendas

[Spheerys]

Hi ,

Is it possible to replace the limited color chooser by a color picker ?

[tcitworld]

Color input is now supported by over 70% of users, including Safari 10 users. Time to get this in ? http://caniuse.com/#feat=input-color

[georgehrke]

That means we would have to drop Safari9 support, but I'm fine with that. (ref #67)
Safari 10 is also available on older OS X releases like yosemite, so it's not a big deal.

[tcitworld]

iOS is still an issue though.

[georgehrke]

AFAIK we can check if the browser supports it with:

const input = document.createElement('input');
input.setAttribute('type', 'color');
if (input.type === 'color) => supported

So I suggest to only display the color picker when its supported, but don't provide a fallback.