GeezerVison

Plotly.newPlot(
    gd,
    [
        {
            type: 'heatmap',
            z: [
                [1, 2, 3],
                [4, 5, 6],
                [7, 8, 9]
            ],
            colorscale: 'Jet',
            texttemplate: '%{z}'
        }
    ],
    { width: 400, height: 300 }
);

Plotly.newPlot(gd, {
    data: [
        {
            type: 'bar',
            x: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9],
            y: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1],
            marker: {
                color: [
                    '#1f77b4',
                    '#ff7f0e',
                    '#2ca02c',
                    '#d62728',
                    '#9467bd',
                    '#8c564b',
                    '#e377c2',
                    '#7f7f7f',
                    '#bcbd22',
                    '#17becf'
                ]
            },
            text: ['0', '1', '2', '3', '4', '5', '6', '7', '8', '9'],
            textposition: 'inside',
            insidetextanchor: 'middle',
            textfont: { size: 32 },
            hoverinfo: 'skip'
        }
    ],
    layout: {
        title: { text: 'Auto inside-text color on default colorway' },
        showlegend: false,
        bargap: 0,
        xaxis: { visible: false },
        yaxis: { visible: false },
        width: 900,
        height: 220,
        margin: { l: 20, r: 20, t: 60, b: 20 }
    }
});

Plotly.newPlot(
    gd,
    [
        {
            type: 'pie',
            values: [7, 6, 5, 4, 3, 2, 1]
        }
    ],
    {
        colorway: ['#777', '#F00'],
        width: 400,
        height: 400
    }
);