World with Taiwan, very high resolution - Highcharts Maps

Highcharts Maps demo

HTML

<script src="https://code.highcharts.com/maps/highmaps.js"></script>
<script src="https://code.highcharts.com/maps/modules/exporting.js"></script>

<div id="container"></div>

CSS

#container {
    height: 500px;
    min-width: 310px;
    max-width: 800px;
    margin: 0 auto;
}

.loading {
    margin-top: 10em;
    text-align: center;
    color: gray;
}

JavaScript

(async () => {

    const topology = await fetch(
        'https://code.highcharts.com/mapdata/custom/world-taiwan-highres2.topo.json'
    ).then(response => response.json());

    // Prepare demo data. The data is joined to map using value of 'hc-key'
    // property by default. See API docs for 'joinBy' for more info on linking
    // data and map.
    const data = [
        ['fo', 10], ['um', 11], ['us', 12], ['jp', 13], ['sc', 14], ['in', 15],
        ['fr', 16], ['fm', 17], ['cn', 18], ['sw', 19], ['sh', 20], ['br', 21],
        ['ec', 22], ['au', 23], ['ki', 24], ['ph', 25], ['mx', 26], ['es', 27],
        ['bu', 28], ['mv', 29], ['sp', 30], ['gb', 31], ['gr', 32], ['as', 33],
        ['dk', 34], ['gl', 35], ['gu', 36], ['mp', 37], ['pr', 38], ['vi', 39],
        ['ca', 40], ['st', 41], ['cv', 42], ['dm', 43], ['nl', 44], ['ye', 45],
        ['jm', 46], ['ws', 47], ['om', 48], ['vc', 49], ['tr', 50], ['bd', 51],
        ['sb', 52], ['lc', 53], ['nr', 54], ['no', 55], ['kn', 56], ['bh', 57],
        ['to', 58], ['fi', 59], ['id', 60], ['mu', 61], ['se', 62], ['tt', 63],
        ['my', 64], ['bs', 65], ['pw', 66], ['tv', 67], ['mh', 68], ['cl', 69],
        ['th', 70], ['gd', 71], ['ee', 72], ['ag', 73], ['tw', 74], ['bb', 75],
        ['it', 76], ['mt', 77], ['pg', 78], ['vu', 79], ['sg', 80], ['cy', 81],
        ['km', 82], ['fj', 83], ['ru', 84], ['va', 85], ['sm', 86], ['kz', 87],
        ['az', 88], ['am', 89], ['tj', 90], ['ls', 91], ['uz', 92], ['pt', 93],
        ['ma', 94], ['co', 95], ['tl', 96], ['tz', 97], ['kh', 98], ['ar', 99],
        ['sa', 100], ['pk', 101], ['ae', 102], ['ke', 103], ['pe', 104],
        ['do', 105], ['ht', 106], ['ao', 107], ['mz', 108], ['pa', 109],
        ['cr', 110], ['ir', 111], ['sv', 112], ['gw', 113], ['hr', 114],
        ['bz', 115], ['za', 116], ['na', 117], ['cf', 118], ['sd', 119],
        ['ly', 120], ['cd', 121], ['kw', 122], ['de', 123], ['ie', 124],
        ['kp', 125], ['kr', 126], ['gy', 127], ['hn', 128],...