src/components/atoms/figure/figure.tsx

(function (Prism) {
  var builtinTypes =
    /\b(?:bool|bytes|double|s?fixed(?:32|64)|float|[su]?int(?:32|64)|string)\b/;

  Prism.languages.protobuf = Prism.languages.extend('clike', {
    'class-name': [
      {
        pattern: /(\b(?:enum|extend|message|service)\s+)[A-Za-z_]\w*(?=\s*\{)/,
        lookbehind: true,
      },
      {
        pattern:
          /(\b(?:rpc\s+\w+|returns)\s*\(\s*(?:stream\s+)?)\.?[A-Za-z_]\w*(?:\.[A-Za-z_]\w*)*(?=\s*\))/,
        lookbehind: true,
      },
    ],
    keyword:
      /\b(?:enum|extend|extensions|import|message|oneof|option|optional|package|public|repeated|required|reserved|returns|rpc(?=\s+\w)|service|stream|syntax|to)\b(?!\s*=\s*\d)/,
    function: /\b[a-z_]\w*(?=\s*\()/i,
  });

  Prism.languages.insertBefore('protobuf', 'operator', {
    map: {
      pattern: /\bmap<\s*[\w.]+\s*,\s*[\w.]+\s*>(?=\s+[a-z_]\w*\s*[=;])/i,
      alias: 'class-name',
      inside: {
        punctuation: /[<>.,]/,
        builtin: builtinTypes,
      },
    },
    builtin: builtinTypes,
    'positional-class-name': {
      pattern: /(?:\b|\B\.)[a-z_]\w*(?:\.[a-z_]\w*)*(?=\s+[a-z_]\w*\s*[=;])/i,
      alias: 'class-name',
      inside: {
        punctuation: /\./,
      },
    },
    annotation: {
      pattern: /(\[\s*)[a-z_]\w*(?=\s*=)/i,
      lookbehind: true,
    },
  });
})(Prism);