Strange colors in Ionic View (iOS)

@jawo wrote:

Hi guys,

I'm using chart.js to display a linechart. In browser the colors are represented correctly, but on my iPhone 6s the colors are black-like (in Ionic View App).

Anhang 1.jpg750x704 55.2 KB

This is the related code:

var ctx = document.getElementById("secondChart");
var myChart = new Chart(ctx, {
type: 'line',
data: {
labels: ["Januar", "Februar", "März", "April", "Mai", "Juni", "Juli", "August", "September", "Oktober", "November", "Dezember"],
datasets: [{
label: 'Line 1',
data: [110, 119, 142, 198, 148, 154, 167, 126, 128, 194, 140, 128],
backgroundColor: [
'rgba(173, 159, 111, 0.2)' //gold
],
borderWidth: 1
}, {
label: 'Line 2',
data: [120, 123, 146, 119, 126, 143, 192, 142, 182, 147, 119, 140],
backgroundColor: [
'rgba(69, 161, 216, 0.2)' //blue
],
borderWidth: 1
}]
},
options: {
scales: {
yAxes: [{
ticks: {
beginAtZero: false
}
}]
}
}

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