ファビコンを網羅したいなら、
透明svg と 背景白 の svg （アップルタッチアイコン用）を用意
まず四角目いっぱいに入れる
svgをここで
https://rakko.tools/tools/69/
すべての画像を作成
アップルタッチアイコン用のみ 背景白に入れ替え
トップレベルドメインフォルダに入れる パブリック＿ｈｔｍｌ
<link rel="apple-touch-icon" sizes="57x57" HREF="/apple-icon-57x57.png"> <link rel="apple-touch-icon" sizes="60x60" HREF="/apple-icon-60x60.png"> <link rel="apple-touch-icon" sizes="72x72" HREF="/apple-icon-72x72.png"> <link rel="apple-touch-icon" sizes="76x76" HREF="/apple-icon-76x76.png"> <link rel="apple-touch-icon" sizes="114x114" HREF="/apple-icon-114x114.png"> <link rel="apple-touch-icon" sizes="120x120" HREF="/apple-icon-120x120.png"> <link rel="apple-touch-icon" sizes="144x144" HREF="/apple-icon-144x144.png"> <link rel="apple-touch-icon" sizes="152x152" HREF="/apple-icon-152x152.png"> <link rel="apple-touch-icon" sizes="180x180" HREF="/apple-icon-180x180.png"> <link rel="icon" type="image/png" sizes="192x192" HREF="/android-icon-192x192.png"> <link rel="icon" type="image/png" sizes="32x32" HREF="/favicon-32x32.png"> <link rel="icon" type="image/png" sizes="96x96" HREF="/favicon-96x96.png"> <link rel="icon" type="image/png" sizes="16x16" HREF="/favicon-16x16.png"> <link rel="manifest" HREF="/manifest.json"> <meta name="msapplication-TileColor" content="#ffffff"> <meta name="msapplication-TileImage" content="/ms-icon-144x144.png"> <meta name="theme-color" content="#ffffff">
<link rel="icon" href="<?php echo home_url(); ?>/favicon.svg" type="image/svg+xml"> <link rel="icon" type="image/x-icon" href="<?php echo home_url(); ?>/favicon.ico"> <link rel="apple-touch-icon" sizes="57x57" HREF="/apple-icon-57x57.png"> <link rel="apple-touch-icon" sizes="60x60" HREF="/apple-icon-60x60.png"> <link rel="apple-touch-icon" sizes="72x72" HREF="/apple-icon-72x72.png"> <link rel="apple-touch-icon" sizes="76x76" HREF="/apple-icon-76x76.png"> <link rel="apple-touch-icon" sizes="114x114" HREF="/apple-icon-114x114.png"> <link rel="apple-touch-icon" sizes="120x120" HREF="/apple-icon-120x120.png"> <link rel="apple-touch-icon" sizes="144x144" HREF="/apple-icon-144x144.png"> <link rel="apple-touch-icon" sizes="152x152" HREF="/apple-icon-152x152.png"> <link rel="apple-touch-icon" sizes="180x180" HREF="/apple-icon-180x180.png"> <link rel="icon" type="image/png" sizes="192x192" HREF="/android-icon-192x192.png"> <link rel="icon" type="image/png" sizes="32x32" HREF="/favicon-32x32.png"> <link rel="icon" type="image/png" sizes="96x96" HREF="/favicon-96x96.png"> <link rel="icon" type="image/png" sizes="16x16" HREF="/favicon-16x16.png"> <link rel="manifest" HREF="/manifest.json"> <meta name="msapplication-TileColor" content="#ffffff"> <meta name="msapplication-TileImage" content="/ms-icon-144x144.png"> <meta name="theme-color" content="#ffffff">
一応 下のにして svgをつかってもらうようにした