如何解决在 Ionic 5 中使用 Inkscape 制作的带有 SVG 文件的自定义离子图标
我在使用 Inkscape 上制作的自定义 SVG 显示自定义 ion-icon 时遇到问题。网站收到了我的图标（我可以在 Firefox 开发者工具的网络选项卡中看到它），但它的 div 容器是空的。
我正在尝试在这样的 ion-item 中显示图标：
<ion-item button>
<ion-icon name="custom-logo" slot="start"></ion-icon>
<ion-label>Account</ion-label>
</ion-item>
我已经配置了 angular.json 文件，这不是问题。我只是将这个样式表规则应用于它：
ion-icon {
color: var(--ion-color-dark);
}
这是我在浏览器上得到的 HTML 页面的结果（一个空的 div.icon-inner）：
<ion-icon _ngcontent-dxl-c134="" name="custom-logo" slot="start" ng-reflect-name="custom-logo" role="img" class="md hydrated" aria-label="custom logo">
#shadow-root (open)
<style>…</style>
<div class="icon-inner"></div>
</ion-icon>
我的自定义 SVG 文件如下所示：
<?xml version="1.0" encoding="UTF-8"?>
<svg width="6.35mm" height="6.3489mm" version="1.1" viewBox="0 0 6.35 6.3489" xmlns="http://www.w3.org/2000/svg" xmlns:cc="http://creativecommons.org/ns#" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:xlink="http://www.w3.org/1999/xlink">
<title>Custom Logo</title>
<defs>
<linearGradient id="linearGradient1106">
<stop stop-color="#fff" offset="0"/>
<stop stop-color="#646464" offset="1"/>
</linearGradient>
<linearGradient id="linearGradient1362-1" x1="63.286" x2="140.95" y1="540.13" y2="461.71" gradientTransform="translate(426.24 17.287)" gradientUnits="userSpaceOnUse">
<stop stop-color="#ff3e3b" offset="0"/>
<stop stop-color="#2120ff" offset="1"/>
</linearGradient>
<clipPath id="clipPath1328-8">
<circle cx="78.738" cy="583.32" r="40.831" fill="none" stroke-opacity="0"/>
</clipPath>
<linearGradient id="linearGradient1689" x1="54.051" x2="74.461" y1="544.29" y2="564.7" gradientTransform="translate(373.26 -207.84)" gradientUnits="userSpaceOnUse" xlink:href="#linearGradient1106"/>
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<linearGradient id="linearGradient1695" x1="54.051" x2="74.461" y1="544.29" y2="564.7" gradientTransform="translate(393.67 -187.43)" gradientUnits="userSpaceOnUse" xlink:href="#linearGradient1106"/>
<linearGradient id="linearGradient1697" x1="54.051" x2="74.461" y1="544.29" y2="564.7" gradientTransform="translate(414.09 -207.84)" gradientUnits="userSpaceOnUse" xlink:href="#linearGradient1106"/>
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<linearGradient id="linearGradient1715" x1="54.051" x2="74.461" y1="544.29" y2="564.7" gradientTransform="translate(393.67 -167.02)" gradientUnits="userSpaceOnUse" xlink:href="#linearGradient1106"/>
<linearGradient id="linearGradient1717" x1="54.051" x2="74.461" y1="544.29" y2="564.7" gradientTransform="translate(414.09 -167.02)" gradientUnits="userSpaceOnUse" xlink:href="#linearGradient1106"/>
<linearGradient id="linearGradient1719" x1="54.051" x2="74.461" y1="544.29" y2="564.7" gradientTransform="translate(434.5 -167.02)" gradientUnits="userSpaceOnUse" xlink:href="#linearGradient1106"/>
</defs>
<metadata>
<rdf:RDF>
<cc:Work rdf:about="">
<dc:format>image/svg+xml</dc:format>
<dc:type rdf:resource="http://purl.org/dc/dcmitype/StillImage"/>
<dc:title>Custom Logo</dc:title>
</cc:Work>
</rdf:RDF>
</metadata>
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<g transform="matrix(.077312 0 0 .077312 458.69 430.84)">
<g transform="matrix(1.0048 0 0 1.0048 459.12 -78.133)" clip-path="url(#clipPath1328-8)" fill-rule="evenodd" stroke="#646464" stroke-width=".01">
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<g transform="translate(284.25 -120.42)" fill="none" stroke-linecap="round" stroke-linejoin="round" stroke-width="9.265">
<path d="m275.06 612.13c-6.2367 14.552-12.473 29.104-18.93 32.191-6.457 3.0868-13.134-5.2915-19.812-13.67" stroke="#212620" stroke-opacity=".39024"/>
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</svg>
我看过 this post 但它与 Ionic 4 相关，而且我已经提出了建议的解决方案，但没有奏效。我已将 Inkscape 中的 SVG 导出为优化的 SVG（但我尝试了其他 SVG 格式，但效果不佳）。我的问题可能是由于 SVG，但我必须更改什么才能使其正常工作？
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