diff --git a/Assets/css/all.css b/Assets/css/all.css
index 5ca4f75f..4bd8c034 100644
--- a/Assets/css/all.css
+++ b/Assets/css/all.css
@@ -878,13 +878,12 @@ dd {
 .highlight {
   background: var(--secondary-system-background);
   border-radius: 8px;
-  font-size: smaller;
+  font-size: 0.75em;
   margin-bottom: 2em;
   overflow-x: auto;
-  padding: 1em;
-  padding-left: 3em;
   text-indent: -2em;
-  white-space: pre;
+  padding: 1em 1em 1em 3em;
+  white-space: pre-wrap;
 
   & .p {
     white-space: nowrap;
diff --git a/Changelog.md b/Changelog.md
index 42df9b9d..975a1b2b 100644
--- a/Changelog.md
+++ b/Changelog.md
@@ -17,6 +17,11 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Fixed public extensions exposing nested code of all access levels.
   #195 by @Tunous.
 
+### Changed
+
+- Changed display of code declarations in HTML.
+  #204 by @mattt.
+
 ## [1.0.0-beta.5] - 2020-09-29
 
 ### Added
diff --git a/Package.resolved b/Package.resolved
index e4d09600..df1701fe 100644
--- a/Package.resolved
+++ b/Package.resolved
@@ -42,8 +42,8 @@
         "repositoryURL": "https://github.com/apple/swift-argument-parser.git",
         "state": {
           "branch": null,
-          "revision": "223d62adc52d51669ae2ee19bdb8b7d9fd6fcd9c",
-          "version": "0.0.6"
+          "revision": "92646c0cdbaca076c8d3d0207891785b3379cbff",
+          "version": "0.3.1"
         }
       },
       {
@@ -104,8 +104,8 @@
         "package": "SwiftSyntaxHighlighter",
         "repositoryURL": "https://github.com/NSHipster/SwiftSyntaxHighlighter.git",
         "state": {
-          "branch": "1.1.1",
-          "revision": "76bd23ae4b23f028a8e45f906c2bf98312fb9d33",
+          "branch": "1.1.3",
+          "revision": "b086ef5066b6f799f9c7d6d7fc1553581b55ef1e",
           "version": null
         }
       }
diff --git a/Package.swift b/Package.swift
index b8e0c6a8..cd55d64b 100644
--- a/Package.swift
+++ b/Package.swift
@@ -20,8 +20,8 @@ let package = Package(
         .package(url: "https://github.com/SwiftDocOrg/GraphViz.git", .upToNextMinor(from: "0.1.2")),
         .package(url: "https://github.com/NSHipster/HypertextLiteral.git", .upToNextMinor(from: "0.0.2")),
         .package(url: "https://github.com/SwiftDocOrg/Markup.git", .upToNextMinor(from: "0.0.3")),
-        .package(url: "https://github.com/NSHipster/SwiftSyntaxHighlighter.git", .revision("1.1.1")),
-        .package(url: "https://github.com/apple/swift-argument-parser.git", .upToNextMinor(from: "0.0.6")),
+        .package(url: "https://github.com/NSHipster/SwiftSyntaxHighlighter.git", .revision("1.1.3")),
+        .package(url: "https://github.com/apple/swift-argument-parser.git", .upToNextMinor(from: "0.3.1")),
         .package(url: "https://github.com/apple/swift-log.git", .upToNextMinor(from: "1.2.0")),
         .package(name: "LoggingGitHubActions", url: "https://github.com/NSHipster/swift-log-github-actions.git", .upToNextMinor(from: "0.0.1")),
     ],
@@ -54,7 +54,8 @@ let package = Package(
             dependencies: [
                 .product(name: "SwiftSyntax", package: "SwiftSyntax"),
                 .product(name: "SwiftSemantics", package: "SwiftSemantics"),
-                .product(name: "SwiftMarkup", package: "SwiftMarkup")
+                .product(name: "SwiftMarkup", package: "SwiftMarkup"),
+                .product(name: "SwiftSyntaxHighlighter", package: "SwiftSyntaxHighlighter")
             ]
         ),
         .testTarget(
diff --git a/Package@swift-5.2.swift b/Package@swift-5.2.swift
index 51114a8e..ad8be933 100644
--- a/Package@swift-5.2.swift
+++ b/Package@swift-5.2.swift
@@ -17,8 +17,8 @@ let package = Package(
         .package(url: "https://github.com/SwiftDocOrg/GraphViz.git", .upToNextMinor(from: "0.1.2")),
         .package(url: "https://github.com/NSHipster/HypertextLiteral.git", .upToNextMinor(from: "0.0.2")),
         .package(url: "https://github.com/SwiftDocOrg/Markup.git", .upToNextMinor(from: "0.0.3")),
-        .package(url: "https://github.com/NSHipster/SwiftSyntaxHighlighter.git", .revision("1.0.0")),
-        .package(url: "https://github.com/apple/swift-argument-parser.git", .upToNextMinor(from: "0.0.6")),
+        .package(url: "https://github.com/NSHipster/SwiftSyntaxHighlighter.git", .revision("1.0.2")),
+        .package(url: "https://github.com/apple/swift-argument-parser.git", .upToNextMinor(from: "0.3.1")),
         .package(url: "https://github.com/apple/swift-log.git", .upToNextMinor(from: "1.2.0")),
         .package(url: "https://github.com/NSHipster/swift-log-github-actions.git", .upToNextMinor(from: "0.0.1")),
     ],
diff --git a/Resources/all.min.css b/Resources/all.min.css
index 82e45b4c..199ada12 100644
--- a/Resources/all.min.css
+++ b/Resources/all.min.css
@@ -1 +1 @@
-:root{--system-red:#ff3b30;--system-orange:#ff9500;--system-yellow:#fc0;--system-green:#34c759;--system-teal:#5ac8fa;--system-blue:#007aff;--system-indigo:#5856d6;--system-purple:#af52de;--system-pink:#ff2d55;--system-gray:#8e8e93;--system-gray2:#aeaeb2;--system-gray3:#c7c7cc;--system-gray4:#d1d1d6;--system-gray5:#e5e5ea;--system-gray6:#f2f2f7;--label:#000;--secondary-label:#3c3c43;--tertiary-label:#48484a;--quaternary-label:#636366;--placeholder-text:#8e8e93;--link:#007aff;--separator:#e5e5ea;--opaque-separator:#c6c6c8;--system-fill:#787880;--secondary-system-fill:#787880;--tertiary-system-fill:#767680;--quaternary-system-fill:#747480;--system-background:#fff;--secondary-system-background:#f2f2f7;--tertiary-system-background:#fff;--system-grouped-background:#f2f2f7;--secondary-system-grouped-background:#fff;--tertiary-system-grouped-background:#f2f2f7}@supports (color:color(display-p3 1 1 1)){:root{--system-red:color(display-p3 1 0.2314 0.1882);--system-orange:color(display-p3 1 0.5843 0);--system-yellow:color(display-p3 1 0.8 0);--system-green:color(display-p3 0.2039 0.7804 0.349);--system-teal:color(display-p3 0.3529 0.7843 0.9804);--system-blue:color(display-p3 0 0.4784 1);--system-indigo:color(display-p3 0.3451 0.3373 0.8392);--system-purple:color(display-p3 0.6863 0.3216 0.8706);--system-pink:color(display-p3 1 0.1765 0.3333);--system-gray:color(display-p3 0.5569 0.5569 0.5765);--system-gray2:color(display-p3 0.6824 0.6824 0.698);--system-gray3:color(display-p3 0.7804 0.7804 0.8);--system-gray4:color(display-p3 0.8196 0.8196 0.8392);--system-gray5:color(display-p3 0.898 0.898 0.9176);--system-gray6:color(display-p3 0.949 0.949 0.9686);--label:color(display-p3 0 0 0);--secondary-label:color(display-p3 0.2353 0.2353 0.2627);--tertiary-label:color(display-p3 0.2823 0.2823 0.2901);--quaternary-label:color(display-p3 0.4627 0.4627 0.5019);--placeholder-text:color(display-p3 0.5568 0.5568 0.5764);--link:color(display-p3 0 0.4784 1);--separator:color(display-p3 0.898 0.898 0.9176);--opaque-separator:color(display-p3 0.7765 0.7765 0.7843);--system-fill:color(display-p3 0.4706 0.4706 0.502);--secondary-system-fill:color(display-p3 0.4706 0.4706 0.502);--tertiary-system-fill:color(display-p3 0.4627 0.4627 0.502);--quaternary-system-fill:color(display-p3 0.4549 0.4549 0.502);--system-background:color(display-p3 1 1 1);--secondary-system-background:color(display-p3 0.949 0.949 0.9686);--tertiary-system-background:color(display-p3 1 1 1);--system-grouped-background:color(display-p3 0.949 0.949 0.9686);--secondary-system-grouped-background:color(display-p3 1 1 1);--tertiary-system-grouped-background:color(display-p3 0.949 0.949 0.9686)}}:root{--large-title:600 32pt/39pt sans-serif;--title-1:600 26pt/32pt sans-serif;--title-2:600 20pt/25pt sans-serif;--title-3:500 18pt/23pt sans-serif;--headline:500 15pt/20pt sans-serif;--body:300 15pt/20pt sans-serif;--callout:300 14pt/19pt sans-serif;--subhead:300 13pt/18pt sans-serif;--footnote:300 12pt/16pt sans-serif;--caption-1:300 11pt/13pt sans-serif;--caption-2:300 11pt/13pt sans-serif;--icon-associatedtype:url("data:image/svg+xml;charset=utf-8,%3Csvg viewBox='0 0 100 100' xmlns='http://www.w3.org/2000/svg'%3E%3Crect fill='%23ff6682' height='90' rx='8' stroke='%23ff2d55' stroke-miterlimit='10' stroke-width='4' width='90' x='5' y='5'/%3E%3Cpath d='M42 81.71V31.3H24.47v-13h51.06v13H58v50.41z' fill='%23fff'/%3E%3C/svg%3E");--icon-case:url("data:image/svg+xml;charset=utf-8,%3Csvg viewBox='0 0 100 100' xmlns='http://www.w3.org/2000/svg'%3E%3Crect fill='%2389c5e6' height='90' rx='8' stroke='%236bb7e1' stroke-miterlimit='10' stroke-width='4' width='90' x='5' y='5'/%3E%3Cpath d='M20.21 50c0-20.7 11.9-32.79 30.8-32.79 16 0 28.21 10.33 28.7 25.32H64.19C63.4 35 58.09 30.11 51 30.11c-8.79 0-14.37 7.52-14.37 19.82s5.54 20 14.41 20c7.08 0 12.22-4.66 13.23-12.09h15.52c-.74 15.07-12.43 25-28.78 25C32 82.81 20.21 70.72 20.21 50z' 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0;vertical-align:middle;display:inline-block}h1+*,h2+*,h3+*,h4+*,h5+*,h6+*{margin-top:.8em}img+h1{margin-top:.5em}img+h1,img+h2,img+h3,img+h4,img+h5,img+h6{margin-top:.3em}:is(h1,h2,h3,h4,h5,h6)+:is(h1,h2,h3,h4,h5,h6){margin-top:.4em}:matches(h1,h2,h3,h4,h5,h6)+:matches(h1,h2,h3,h4,h5,h6){margin-top:.4em}:is(p,ul,ol)+:is(h1,h2,h3,h4,h5,h6){margin-top:1.6em}:matches(p,ul,ol)+:matches(h1,h2,h3,h4,h5,h6){margin-top:1.6em}:is(p,ul,ol)+*{margin-top:.8em}:matches(p,ul,ol)+*{margin-top:.8em}ol,ul{margin-left:1.17647em}:matches(ul,ol) :matches(ul,ol){margin-bottom:0;margin-top:0}nav h2{color:#3c3c43;color:var(--secondary-label);font-size:1rem;font-feature-settings:"c2sc";font-variant:small-caps;font-weight:600;text-transform:uppercase}nav ol,nav ul{margin:0;list-style:none}nav li li{font-size:smaller}a:link,a:visited{text-decoration:none}a:hover{text-decoration:underline}a:active{text-decoration:none}b,strong{font-weight:600}.discussion,.summary{font:300 14pt/19pt sans-serif;font:var(--callout)}article>.discussion{margin-bottom:2em}.discussion .highlight{background:transparent;border:1px solid #e5e5ea;border:1px solid var(--separator);font:300 11pt/13pt sans-serif;font:var(--caption-1);padding:1em;text-indent:0}cite,dfn,em,i{font-style:italic}:matches(h1,h2,h3) sup{font-size:.4em}sup a{color:inherit;vertical-align:inherit}sup a:hover{color:#007aff;color:var(--link);text-decoration:none}sub{line-height:1}abbr{border:0}:lang(ja),:lang(ko),:lang(th),:lang(zh){font-style:normal}:lang(ko){word-break:keep-all}form fieldset{margin:1em auto;max-width:450px;width:95%}form label{display:block;font-size:1em;font-weight:400;line-height:1.5em;margin-bottom:14px;position:relative;width:100%}input[type=email],input[type=number],input[type=password],input[type=tel],input[type=text],input[type=url],textarea{border-radius:4px;border:1px solid #e5e5ea;border:1px solid var(--separator);color:#333;font-family:inherit;font-size:100%;font-weight:400;height:34px;margin:0;padding:0 1em;position:relative;vertical-align:top;width:100%;z-index:1}input[type=email],input [type=email]:focus,input[type=number],input [type=number]:focus,input[type=password],input [type=password]:focus,input[type=tel],input [type=tel]:focus,input[type=text],input [type=text]:focus,input[type=url],input [type=url]:focus,textarea,textarea:focus{-webkit-appearance:none;-moz-appearance:none;appearance:none}input[type=email]:focus,input[type=number]:focus,input[type=password]:focus,input[type=tel]:focus,input[type=text]:focus,input[type=url]:focus,textarea:focus{border-color:#08c;box-shadow:0 0 0 3px rgba(0,136,204,.3);outline:0;z-index:9}input[type=email]:-moz-read-only,input[type=number]:-moz-read-only,input[type=password]:-moz-read-only,input[type=tel]:-moz-read-only,input[type=text]:-moz-read-only,input[type=url]:-moz-read-only,textarea:-moz-read-only{background:none;border:none;box-shadow:none;padding-left:0}input[type=email]:read-only,input[type=number]:read-only,input[type=password]:read-only,input[type=tel]:read-only,input[type=text]:read-only,input[type=url]:read-only,textarea:read-only{background:none;border:none;box-shadow:none;padding-left:0}::-webkit-input-placeholder{color:#8e8e93;color:var(--placeholder-text)}::-moz-placeholder{color:#8e8e93;color:var(--placeholder-text)}:-ms-input-placeholder{color:#8e8e93;color:var(--placeholder-text)}::-ms-input-placeholder{color:#8e8e93;color:var(--placeholder-text)}::placeholder{color:#8e8e93;color:var(--placeholder-text)}textarea{-webkit-overflow-scrolling:touch;line-height:1.4737;min-height:134px;overflow-y:auto;resize:vertical;transform:translateZ(0)}textarea,textarea:focus{-webkit-appearance:none;-moz-appearance:none;appearance:none}select{background:transparent;border-radius:4px;border:none;cursor:pointer;font-family:inherit;font-size:1em;height:34px;margin:0;padding:0 1em;width:100%}select,select:focus{-webkit-appearance:none;-moz-appearance:none;appearance:none}select:focus{border-color:#08c;box-shadow:0 0 0 3px rgba(0,136,204,.3);outline:0;z-index:9}input[type=file]{background:#fafafa;border-radius:4px;color:#333;cursor:pointer;font-family:inherit;font-size:100%;height:34px;margin:0;padding:6px 1em;position:relative;vertical-align:top;width:100%;z-index:1}input[type=file]:focus{border-color:#08c;outline:0;box-shadow:0 0 0 3px 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15pt/20pt sans-serif;font:var(--body)}h1{font:600 32pt/39pt sans-serif;font:var(--large-title)}h2{font:600 20pt/25pt sans-serif;font:var(--title-2)}h3{font:500 18pt/23pt sans-serif;font:var(--title-3)}h4,h5,h6{font:500 15pt/20pt sans-serif;font:var(--headline)}a{color:#007aff;color:var(--link)}label{font:300 14pt/19pt sans-serif;font:var(--callout)}input,label{display:block}input{margin-bottom:1em}hr{border:none;border-top:1px solid #e5e5ea;border-top:1px solid var(--separator);margin:1em 0}table{width:100%;font:300 11pt/13pt sans-serif;font:var(--caption-1);caption-side:bottom;margin-bottom:2em}td,th{padding:0 1em}th{font-weight:600;text-align:left}thead th{border-bottom:1px solid #e5e5ea;border-bottom:1px solid var(--separator)}tr:last-of-type td,tr:last-of-type th{border-bottom:none}td,th{border-bottom:1px solid #e5e5ea;border-bottom:1px solid var(--separator);color:#3c3c43;color:var(--secondary-label)}caption{color:#48484a;color:var(--tertiary-label);font:300 11pt/13pt sans-serif;font:var(--caption-2);margin-top:2em;text-align:left}.graph text,code{font-family:SFMono-Regular,Menlo,Monaco,Consolas,Liberation Mono,Courier New,monospace;font-weight:300}.graph>polygon{display:none}.graph text{fill:currentColor!important}.graph ellipse,.graph path,.graph polygon,.graph rect{stroke:currentColor!important}body{width:90vw;max-width:1280px;margin:1em auto}body>header{font:600 26pt/32pt sans-serif;font:var(--title-1);padding:.5em 0}body>header a{color:#000;color:var(--label)}body>header span{font-weight:400}body>header sup{text-transform:uppercase;font-size:small;font-weight:300;letter-spacing:.1ch}body>footer,body>header sup{color:#3c3c43;color:var(--secondary-label)}body>footer{clear:both;padding:1em 0;font:300 11pt/13pt sans-serif;font:var(--caption-1)}@media screen and (max-width:768px){body{width:96vw;max-width:100%}body>header{font:500 18pt/23pt sans-serif;font:var(--title-3);text-align:left;padding:1em 0}body>nav{display:none}body>main{padding:0 1em}}@media screen and (max-width:768px){#relationships figure{display:none}section>[role=article][class] pre{margin-left:-2.5em}section>[role=article][class] div{margin-left:-2em}}main,nav{overflow-x:auto}main{background:#fff;background:var(--system-background);border-radius:8px;padding:0 2em}main section{border-bottom:1px solid #e5e5ea;border-bottom:1px solid var(--separator);margin-bottom:2em;padding-bottom:1em}main section:last-of-type{border-bottom:none;margin-bottom:0}nav{float:right;margin-left:1em;max-height:100vh;overflow:auto;padding:0 1em 3em;position:-webkit-sticky;position:sticky;top:1em;width:20vw}nav a{color:#3c3c43;color:var(--secondary-label)}nav ul a{color:#48484a;color:var(--tertiary-label)}nav ol,nav ul{padding:0}nav ul{font:300 14pt/19pt sans-serif;font:var(--callout);margin-bottom:1em}nav ol>li>a{display:block;font-size:smaller;font:500 15pt/20pt sans-serif;font:var(--headline);margin:.5em 0}nav li{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}blockquote{--link:var(--secondary-label);border-left:4px solid #e5e5ea;border-left:4px solid var(--separator);color:#3c3c43;color:var(--secondary-label);font-size:smaller;margin-left:0;padding-left:2em}blockquote a{text-decoration:underline}article{padding:2em 0 1em}article>.summary{border-bottom:1px solid #e5e5ea;border-bottom:1px solid var(--separator);margin-bottom:2em;padding-bottom:1em}article>.summary:last-child{border-bottom:none}.parameters th{text-align:right}.parameters td{color:#3c3c43;color:var(--secondary-label)}.parameters th+td{text-align:center}dl{padding-top:1em}dt{font:500 15pt/20pt sans-serif;font:var(--headline)}dd{margin-left:2em;margin-bottom:1em}dd p{margin-top:0}.highlight{background:#f2f2f7;background:var(--secondary-system-background);border-radius:8px;font-size:.75em;margin-bottom:2em;overflow-x:auto;text-indent:-2em;padding:1em 1em 1em 3em;white-space:pre-wrap}.highlight .p{white-space:nowrap}.highlight .placeholder{color:#000;color:var(--label)}.highlight a{text-decoration:underline;color:#8e8e93;color:var(--placeholder-text)}.highlight .attribute,.highlight .keyword,.highlight .literal{color:#af52de;color:var(--system-purple)}.highlight .number{color:#007aff;color:var(--system-blue)}.highlight .declaration{color:#5ac8fa;color:var(--system-teal)}.highlight .type{color:#5856d6;color:var(--system-indigo)}.highlight .directive{color:#ff9500;color:var(--system-orange)}.highlight .comment{color:#8e8e93;color:var(--system-gray)}main summary:hover{text-decoration:underline}figure{margin:2em 0;padding:1em 0}figure svg{max-width:100%;height:auto!important;margin:0 auto;display:block}h1 small{font-size:.5em;line-height:1.5;display:block;font-weight:400;color:#636366;color:var(--quaternary-label)}dd code,li code,p code{font-size:smaller;color:#3c3c43;color:var(--secondary-label)}a code{text-decoration:underline}dl dt[class],nav 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\ No newline at end of file
diff --git a/Sources/SwiftDoc/Extensions/SwiftSyntax+Extensions.swift b/Sources/SwiftDoc/Extensions/SwiftSyntax+Extensions.swift
index e38a22d9..51800848 100644
--- a/Sources/SwiftDoc/Extensions/SwiftSyntax+Extensions.swift
+++ b/Sources/SwiftDoc/Extensions/SwiftSyntax+Extensions.swift
@@ -19,6 +19,94 @@ extension SourceLocation: Hashable {
     }
 }
 
+// MARK: -
+
+protocol SymbolDeclProtocol: SyntaxProtocol {
+    var declaration: Syntax { get }
+}
+
+extension AssociatedtypeDeclSyntax: SymbolDeclProtocol {}
+extension ClassDeclSyntax: SymbolDeclProtocol {}
+extension EnumDeclSyntax: SymbolDeclProtocol {}
+extension EnumCaseDeclSyntax: SymbolDeclProtocol {}
+extension FunctionDeclSyntax: SymbolDeclProtocol {}
+extension InitializerDeclSyntax: SymbolDeclProtocol {}
+extension OperatorDeclSyntax: SymbolDeclProtocol {}
+extension PrecedenceGroupDeclSyntax: SymbolDeclProtocol {}
+extension ProtocolDeclSyntax: SymbolDeclProtocol {}
+extension StructDeclSyntax: SymbolDeclProtocol {}
+extension SubscriptDeclSyntax: SymbolDeclProtocol {}
+extension TypealiasDeclSyntax: SymbolDeclProtocol {}
+extension VariableDeclSyntax: SymbolDeclProtocol {}
+
+extension DeclGroupSyntax {
+    var declaration: Syntax {
+        Syntax(self.withoutTrailingTrivia()
+                    .withoutLeadingTrivia()
+                    .withMembers(SyntaxFactory.makeBlankMemberDeclBlock()))
+    }
+}
+
+extension EnumDeclSyntax {
+    var declaration: Syntax {
+        Syntax(self.withoutTrailingTrivia()
+                    .withoutLeadingTrivia()
+                    .withMembers(SyntaxFactory.makeBlankMemberDeclBlock()))
+    }
+}
+
+extension FunctionDeclSyntax {
+    var declaration: Syntax {
+        Syntax(self.withoutTrailingTrivia()
+                    .withoutLeadingTrivia()
+                    .withBody(SyntaxFactory.makeBlankCodeBlock()))
+    }
+}
+
+extension InitializerDeclSyntax {
+    var declaration: Syntax {
+        Syntax(self.withoutTrailingTrivia()
+                    .withoutLeadingTrivia()
+                    .withBody(SyntaxFactory.makeBlankCodeBlock()))
+    }
+}
+
+extension SubscriptDeclSyntax {
+    var declaration: Syntax {
+        Syntax(self.withoutTrailingTrivia()
+                    .withoutLeadingTrivia()
+                    .withAccessor(nil))
+    }
+}
+
+extension VariableDeclSyntax {
+    var declaration: Syntax {
+        let bindings = self.bindings.map { binding -> PatternBindingSyntax in
+            if let value = binding.initializer?.value,
+                value.is(ClosureExprSyntax.self) || value.is(FunctionCallExprSyntax.self)
+            {
+                return binding.withInitializer(nil)
+                              .withAccessor(nil)
+            } else {
+                return binding.withAccessor(nil)
+            }
+        }
+
+        return Syntax(self.withoutTrailingTrivia()
+                        .withoutLeadingTrivia()
+                        .withBindings(SyntaxFactory.makePatternBindingList(bindings)))
+    }
+}
+
+extension SyntaxProtocol {
+    var declaration: Syntax {
+        Syntax(self.withoutLeadingTrivia()
+                   .withoutTrailingTrivia())
+    }
+}
+
+// MARK: -
+
 extension SyntaxProtocol {
     var documentation: String? {
         return leadingTrivia?.documentation
@@ -49,13 +137,13 @@ fileprivate extension TriviaPiece {
     }
 }
 
-fileprivate extension String {
+extension String {
     var unindented: String {
         let lines = split(separator: "\n", omittingEmptySubsequences: false)
         guard lines.count > 1 else { return trimmingCharacters(in: .whitespaces) }
 
         let indentation = lines.compactMap { $0.firstIndex(where: { !$0.isWhitespace })?.utf16Offset(in: $0) }
-                               .min() ?? 0
+            .min() ?? 0
 
         return lines.map {
             guard $0.count > indentation else { return String($0) }
diff --git a/Sources/SwiftDoc/Interface.swift b/Sources/SwiftDoc/Interface.swift
index 7b83e5a1..d5adac70 100644
--- a/Sources/SwiftDoc/Interface.swift
+++ b/Sources/SwiftDoc/Interface.swift
@@ -69,7 +69,7 @@ public final class Interface {
                     for name in inheritedTypeNames {
                         let inheritedTypes = symbols.filter({ ($0.api is Class || $0.api is Protocol) && $0.id.description == name })
                         if inheritedTypes.isEmpty {
-                            let inherited = Symbol(api: Unknown(name: name), context: [], declaration: nil, documentation: nil, sourceLocation: nil)
+                            let inherited = Symbol(api: Unknown(name: name), context: [], declaration: [], documentation: nil, sourceLocation: nil)
                             relationships.insert(Relationship(subject: symbol, predicate: .conformsTo, object: inherited))
                         } else {
                             for inherited in inheritedTypes {
diff --git a/Sources/SwiftDoc/SourceFile.swift b/Sources/SwiftDoc/SourceFile.swift
index ebf49d44..33d4de4c 100644
--- a/Sources/SwiftDoc/SourceFile.swift
+++ b/Sources/SwiftDoc/SourceFile.swift
@@ -3,6 +3,9 @@ import SwiftMarkup
 import SwiftSyntax
 import SwiftSemantics
 import struct SwiftSemantics.Protocol
+import class SwiftSyntaxHighlighter.SwiftSyntaxHighlighter
+import struct Highlighter.Token
+import enum Xcode.Xcode
 
 public protocol Contextual {}
 extension Symbol: Contextual {}
@@ -45,20 +48,28 @@ public struct SourceFile: Hashable, Codable {
             sourceLocationConverter = SourceLocationConverter(file: url.path(relativeTo: directory), tree: tree)
             super.init()
 
-            _ = walk(tree)
+            walk(tree)
 
             assert(context.isEmpty)
         }
 
-        func symbol<Node, Declaration>(_ type: Declaration.Type, _ node: Node) -> Symbol? where Declaration: API & ExpressibleBySyntax, Node == Declaration.Syntax {
+        func symbol<Node, Declaration>(_ type: Declaration.Type, _ node: Node) -> Symbol? where Declaration: API & ExpressibleBySyntax, Node == Declaration.Syntax, Node: SymbolDeclProtocol {
             guard let api = Declaration(node) else { return nil }
-            return symbol(node, api: api)
+            guard let documentation = try? Documentation.parse(node.documentation) else { return nil }
+            let sourceLocation = sourceLocationConverter.location(for: node.position)
+            return Symbol(api: api, context: context, declaration: declaration(for: node), documentation: documentation, sourceLocation: sourceLocation)
         }
 
-        func symbol<Node: SyntaxProtocol>(_ node: Node, api: API) -> Symbol? {
+        func symbol<Node: SymbolDeclProtocol>(_ node: Node, api: API) -> Symbol? {
             guard let documentation = try? Documentation.parse(node.documentation) else { return nil }
             let sourceLocation = sourceLocationConverter.location(for: node.position)
-            return Symbol(api: api, context: context, declaration: "\(api)", documentation: documentation, sourceLocation: sourceLocation)
+            return Symbol(api: api, context: context, declaration: declaration(for: node), documentation: documentation, sourceLocation: sourceLocation)
+        }
+
+        func declaration<Node: SymbolDeclProtocol>(for node: Node) -> [Token] {
+            let highlighter = SwiftSyntaxHighlighter(using: Xcode.self)
+            _ = highlighter.visitAny(Syntax(node.declaration))
+            return highlighter.tokens
         }
 
         func push(_ symbol: Symbol?) {
@@ -183,18 +194,7 @@ public struct SourceFile: Hashable, Codable {
         }
 
         override func visit(_ node: VariableDeclSyntax) -> SyntaxVisitorContinueKind {
-            let variables = node.bindings.compactMap { binding -> Variable? in
-                // Omit initializer expression if closure or function call
-                // to ensure reasonable declaration code blocks.
-                if let value = binding.initializer?.value,
-                    value.is(ClosureExprSyntax.self) || value.is(FunctionCallExprSyntax.self)
-                {
-                    return Variable(binding.withInitializer(nil))
-                } else {
-                    return Variable(binding)
-                }
-            }
-
+            let variables = node.bindings.compactMap { Variable($0) }
             for variable in variables {
                 push(symbol(node, api: variable))
             }
diff --git a/Sources/SwiftDoc/Symbol.swift b/Sources/SwiftDoc/Symbol.swift
index 1b376a11..1174b6a2 100644
--- a/Sources/SwiftDoc/Symbol.swift
+++ b/Sources/SwiftDoc/Symbol.swift
@@ -1,23 +1,24 @@
 import SwiftMarkup
 import SwiftSyntax
 import SwiftSemantics
+import struct Highlighter.Token
 
 public final class Symbol {
     public typealias ID = Identifier
 
     public let api: API
     public let context: [Contextual]
-    public let declaration: String
+    public let declaration: [Token]
     public let documentation: Documentation?
     public let sourceLocation: SourceLocation?
 
     public private(set) lazy var `extension`: Extension? = context.compactMap { $0 as? Extension }.first
     public private(set) lazy var conditions: [CompilationCondition] = context.compactMap { $0 as? CompilationCondition }
 
-    init(api: API, context: [Contextual], declaration: String?, documentation: Documentation?, sourceLocation: SourceLocation?) {
+    init(api: API, context: [Contextual], declaration: [Token], documentation: Documentation?, sourceLocation: SourceLocation?) {
         self.api = api
         self.context = context
-        self.declaration = declaration ?? "\(api)"
+        self.declaration = declaration
         self.documentation = documentation
         self.sourceLocation = sourceLocation
     }
@@ -241,11 +242,11 @@ extension Symbol: Codable {
             throw DecodingError.dataCorrupted(context)
         }
 
-        let declaration = try container.decodeIfPresent(String.self, forKey: .declaration)
+        let declaration = try container.decodeIfPresent([Token].self, forKey: .declaration)
         let documentation = try container.decodeIfPresent(Documentation.self, forKey: .documentation)
         let sourceLocation = try container.decodeIfPresent(SourceLocation.self, forKey: .sourceLocation)
 
-        self.init(api: api, context: [] /* TODO */, declaration: declaration, documentation: documentation, sourceLocation: sourceLocation)
+        self.init(api: api, context: [] /* TODO */, declaration: declaration ?? [], documentation: documentation, sourceLocation: sourceLocation)
     }
 
     public func encode(to encoder: Encoder) throws {
diff --git a/Sources/swift-doc/Subcommands/Generate.swift b/Sources/swift-doc/Subcommands/Generate.swift
index 9c067528..616b6658 100644
--- a/Sources/swift-doc/Subcommands/Generate.swift
+++ b/Sources/swift-doc/Subcommands/Generate.swift
@@ -25,19 +25,16 @@ extension SwiftDoc {
       var moduleName: String
 
       @Option(name: .shortAndLong,
-              default: ".build/documentation",
               help: "The path for generated output")
-      var output: String
+      var output: String = ".build/documentation"
 
       @Option(name: .shortAndLong,
-              default: .commonmark,
               help: "The output format")
-      var format: Format
+      var format: Format = .commonmark
 
       @Option(name: .customLong("base-url"),
-              default: "/",
               help: "The base URL used for all relative URLs in generated documents.")
-      var baseURL: String
+      var baseURL: String = "/"
     }
 
     static var configuration = CommandConfiguration(abstract: "Generates Swift documentation")
diff --git a/Sources/swift-doc/Supporting Types/Components/Declaration.swift b/Sources/swift-doc/Supporting Types/Components/Declaration.swift
index 2c1433d1..d17e6ad3 100644
--- a/Sources/swift-doc/Supporting Types/Components/Declaration.swift	
+++ b/Sources/swift-doc/Supporting Types/Components/Declaration.swift	
@@ -3,7 +3,7 @@ import SwiftDoc
 import SwiftMarkup
 import SwiftSemantics
 import HypertextLiteral
-import SwiftSyntaxHighlighter
+import Highlighter
 import Xcode
 
 struct Declaration: Component {
@@ -22,14 +22,18 @@ struct Declaration: Component {
     var fragment: Fragment {
         Fragment {
             CodeBlock("swift") {
-                symbol.declaration.trimmingCharacters(in: .whitespacesAndNewlines)
+                symbol.declaration.map { $0.text }.joined()
             }
         }
     }
 
     var html: HypertextLiteral.HTML {
-        var html = try! SwiftSyntaxHighlighter.highlight(source: symbol.declaration, using: Xcode.self)
-        html = linkCodeElements(of: html, for: symbol, in: module, with: baseURL)
-        return HTML(html)
+        let code = symbol.declaration.map { $0.html }.joined()
+
+        return #"""
+        <div class="declaration">
+        <pre class="highlight"><code>\#(unsafeUnescaped: code)</code></pre>
+        </div>
+        """#
     }
 }