diff --git a/CHANGELOG.md b/CHANGELOG.md
index c8a870a..7c1bc1e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,12 @@ SPDX-License-Identifier: MIT
 
 # Changelog for rusty-man
 
+## Unreleased
+
+- Add syntax highlighting:
+  - Add syntax highlighting using `syntect` for code snippets displayed with
+    the rich text viewer.
+
 ## v0.1.3 (2020-07-28)
 
 This patch release adds support for documentation generated with Rust 1.45.0
diff --git a/Cargo.lock b/Cargo.lock
index 7eecefe..c543cd3 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -25,6 +25,11 @@ name = "arc-swap"
 version = "0.4.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "autocfg"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "backtrace"
 version = "0.3.50"
@@ -38,6 +43,20 @@ dependencies = [
  "rustc-demangle 0.1.16 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "base64"
+version = "0.12.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
+name = "bincode"
+version = "1.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "byteorder 1.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.114 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "bitflags"
 version = "1.2.1"
@@ -48,11 +67,25 @@ name = "byteorder"
 version = "1.3.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "cc"
+version = "1.0.58"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "cfg-if"
 version = "0.1.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "chrono"
+version = "0.4.13"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "num-integer 0.1.43 (registry+https://github.com/rust-lang/crates.io-index)",
+ "num-traits 0.2.12 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "clap"
 version = "2.33.1"
@@ -71,6 +104,14 @@ dependencies = [
  "bitflags 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "crc32fast"
+version = "1.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "cfg-if 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "crossterm"
 version = "0.17.7"
@@ -169,6 +210,22 @@ dependencies = [
  "libc 0.2.72 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "flate2"
+version = "1.0.16"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "cfg-if 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
+ "crc32fast 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.72 (registry+https://github.com/rust-lang/crates.io-index)",
+ "miniz_oxide 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "fnv"
+version = "1.0.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "futf"
 version = "0.1.4"
@@ -206,6 +263,14 @@ name = "gimli"
 version = "0.22.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "hashbrown"
+version = "0.8.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "autocfg 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "heck"
 version = "0.3.1"
@@ -238,6 +303,15 @@ dependencies = [
  "syn 1.0.34 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "indexmap"
+version = "1.5.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "autocfg 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "hashbrown 0.8.2 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "itoa"
 version = "0.4.6"
@@ -259,11 +333,24 @@ name = "lazy_static"
 version = "1.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "lazycell"
+version = "1.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "libc"
 version = "0.2.72"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "line-wrap"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "safemem 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "lock_api"
 version = "0.3.4"
@@ -365,11 +452,48 @@ dependencies = [
  "winapi 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "num-integer"
+version = "0.1.43"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "autocfg 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "num-traits 0.2.12 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "num-traits"
+version = "0.2.12"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "autocfg 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "object"
 version = "0.20.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "onig"
+version = "6.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "bitflags 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.72 (registry+https://github.com/rust-lang/crates.io-index)",
+ "onig_sys 69.5.0 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "onig_sys"
+version = "69.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "cc 1.0.58 (registry+https://github.com/rust-lang/crates.io-index)",
+ "pkg-config 0.3.18 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "pager"
 version = "0.15.0"
@@ -450,6 +574,24 @@ dependencies = [
  "siphasher 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "pkg-config"
+version = "0.3.18"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
+name = "plist"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "base64 0.12.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "chrono 0.4.13 (registry+https://github.com/rust-lang/crates.io-index)",
+ "indexmap 1.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "line-wrap 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.114 (registry+https://github.com/rust-lang/crates.io-index)",
+ "xml-rs 0.8.3 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "ppv-lite86"
 version = "0.2.8"
@@ -556,6 +698,11 @@ name = "redox_syscall"
 version = "0.1.57"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "regex-syntax"
+version = "0.6.18"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "rustc-demangle"
 version = "0.1.16"
@@ -578,6 +725,7 @@ dependencies = [
  "serde_repr 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_tuple 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "structopt 0.3.15 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syntect 4.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -585,6 +733,19 @@ name = "ryu"
 version = "1.0.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "safemem"
+version = "0.3.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
+name = "same-file"
+version = "1.0.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "winapi-util 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "scopeguard"
 version = "1.1.0"
@@ -785,6 +946,26 @@ dependencies = [
  "syn 1.0.34 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "syntect"
+version = "4.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "bincode 1.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "bitflags 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "flate2 1.0.16 (registry+https://github.com/rust-lang/crates.io-index)",
+ "fnv 1.0.7 (registry+https://github.com/rust-lang/crates.io-index)",
+ "lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "lazycell 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "onig 6.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "plist 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "regex-syntax 0.6.18 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.114 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_derive 1.0.114 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_json 1.0.56 (registry+https://github.com/rust-lang/crates.io-index)",
+ "walkdir 2.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "tendril"
 version = "0.4.1"
@@ -842,6 +1023,16 @@ name = "version_check"
 version = "0.9.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "walkdir"
+version = "2.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "same-file 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi-util 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "wasi"
 version = "0.9.0+wasi-snapshot-preview1"
@@ -861,11 +1052,24 @@ name = "winapi-i686-pc-windows-gnu"
 version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "winapi-util"
+version = "0.1.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "winapi 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "winapi-x86_64-pc-windows-gnu"
 version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "xml-rs"
+version = "0.8.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "xml5ever"
 version = "0.16.1"
@@ -882,12 +1086,18 @@ dependencies = [
 "checksum adler 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)" = "ee2a4ec343196209d6594e19543ae87a39f96d5534d7174822a3ad825dd6ed7e"
 "checksum anyhow 1.0.31 (registry+https://github.com/rust-lang/crates.io-index)" = "85bb70cc08ec97ca5450e6eba421deeea5f172c0fc61f78b5357b2a8e8be195f"
 "checksum arc-swap 0.4.7 (registry+https://github.com/rust-lang/crates.io-index)" = "4d25d88fd6b8041580a654f9d0c581a047baee2b3efee13275f2fc392fc75034"
+"checksum autocfg 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "f8aac770f1885fd7e387acedd76065302551364496e46b3dd00860b2f8359b9d"
 "checksum backtrace 0.3.50 (registry+https://github.com/rust-lang/crates.io-index)" = "46254cf2fdcdf1badb5934448c1bcbe046a56537b3987d96c51a7afc5d03f293"
+"checksum base64 0.12.3 (registry+https://github.com/rust-lang/crates.io-index)" = "3441f0f7b02788e948e47f457ca01f1d7e6d92c693bc132c22b087d3141c03ff"
+"checksum bincode 1.3.1 (registry+https://github.com/rust-lang/crates.io-index)" = "f30d3a39baa26f9651f17b375061f3233dde33424a8b72b0dbe93a68a0bc896d"
 "checksum bitflags 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "cf1de2fe8c75bc145a2f577add951f8134889b4795d47466a54a5c846d691693"
 "checksum byteorder 1.3.4 (registry+https://github.com/rust-lang/crates.io-index)" = "08c48aae112d48ed9f069b33538ea9e3e90aa263cfa3d1c24309612b1f7472de"
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 "checksum cfg-if 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)" = "4785bdd1c96b2a846b2bd7cc02e86b6b3dbf14e7e53446c4f54c92a361040822"
+"checksum chrono 0.4.13 (registry+https://github.com/rust-lang/crates.io-index)" = "c74d84029116787153e02106bf53e66828452a4b325cc8652b788b5967c0a0b6"
 "checksum clap 2.33.1 (registry+https://github.com/rust-lang/crates.io-index)" = "bdfa80d47f954d53a35a64987ca1422f495b8d6483c0fe9f7117b36c2a792129"
 "checksum cloudabi 0.0.3 (registry+https://github.com/rust-lang/crates.io-index)" = "ddfc5b9aa5d4507acaf872de71051dfd0e309860e88966e1051e462a077aac4f"
+"checksum crc32fast 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "ba125de2af0df55319f41944744ad91c71113bf74a4646efff39afe1f6842db1"
 "checksum crossterm 0.17.7 (registry+https://github.com/rust-lang/crates.io-index)" = "6f4919d60f26ae233e14233cc39746c8c8bb8cd7b05840ace83604917b51b6c7"
 "checksum crossterm_winapi 0.6.1 (registry+https://github.com/rust-lang/crates.io-index)" = "057b7146d02fb50175fd7dbe5158f6097f33d02831f43b4ee8ae4ddf67b68f5c"
 "checksum cssparser 0.27.2 (registry+https://github.com/rust-lang/crates.io-index)" = "754b69d351cdc2d8ee09ae203db831e005560fc6030da058f86ad60c92a9cb0a"
@@ -898,18 +1108,24 @@ dependencies = [
 "checksum env_logger 0.7.1 (registry+https://github.com/rust-lang/crates.io-index)" = "44533bbbb3bb3c1fa17d9f2e4e38bbbaf8396ba82193c4cb1b6445d711445d36"
 "checksum errno 0.2.6 (registry+https://github.com/rust-lang/crates.io-index)" = "6eab5ee3df98a279d9b316b1af6ac95422127b1290317e6d18c1743c99418b01"
 "checksum errno-dragonfly 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "14ca354e36190500e1e1fb267c647932382b54053c50b14970856c0b00a35067"
+"checksum flate2 1.0.16 (registry+https://github.com/rust-lang/crates.io-index)" = "68c90b0fc46cf89d227cc78b40e494ff81287a92dd07631e5af0d06fe3cf885e"
+"checksum fnv 1.0.7 (registry+https://github.com/rust-lang/crates.io-index)" = "3f9eec918d3f24069decb9af1554cad7c880e2da24a9afd88aca000531ab82c1"
 "checksum futf 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)" = "7c9c1ce3fa9336301af935ab852c437817d14cd33690446569392e65170aac3b"
 "checksum fxhash 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "c31b6d751ae2c7f11320402d34e41349dd1016f8d5d45e48c4312bc8625af50c"
 "checksum gcc 0.3.55 (registry+https://github.com/rust-lang/crates.io-index)" = "8f5f3913fa0bfe7ee1fd8248b6b9f42a5af4b9d65ec2dd2c3c26132b950ecfc2"
 "checksum getrandom 0.1.14 (registry+https://github.com/rust-lang/crates.io-index)" = "7abc8dd8451921606d809ba32e95b6111925cd2906060d2dcc29c070220503eb"
 "checksum gimli 0.22.0 (registry+https://github.com/rust-lang/crates.io-index)" = "aaf91faf136cb47367fa430cd46e37a788775e7fa104f8b4bcb3861dc389b724"
+"checksum hashbrown 0.8.2 (registry+https://github.com/rust-lang/crates.io-index)" = "e91b62f79061a0bc2e046024cb7ba44b08419ed238ecbd9adbd787434b9e8c25"
 "checksum heck 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)" = "20564e78d53d2bb135c343b3f47714a56af2061f1c928fdb541dc7b9fdd94205"
 "checksum html2text 0.1.12 (registry+https://github.com/rust-lang/crates.io-index)" = "95797be56798f96288153e94dadaef204266254e66f4cbc1046fe03d35a14e6b"
 "checksum html5ever 0.25.1 (registry+https://github.com/rust-lang/crates.io-index)" = "aafcf38a1a36118242d29b92e1b08ef84e67e4a5ed06e0a80be20e6a32bfed6b"
+"checksum indexmap 1.5.1 (registry+https://github.com/rust-lang/crates.io-index)" = "86b45e59b16c76b11bf9738fd5d38879d3bd28ad292d7b313608becb17ae2df9"
 "checksum itoa 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)" = "dc6f3ad7b9d11a0c00842ff8de1b60ee58661048eb8049ed33c73594f359d7e6"
 "checksum kuchiki 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)" = "1beeffc5ae5ab0def2cb85e26063a8e6b4f579b0adec3805bf87472086948956"
 "checksum lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646"
+"checksum lazycell 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "b294d6fa9ee409a054354afc4352b0b9ef7ca222c69b8812cbea9e7d2bf3783f"
 "checksum libc 0.2.72 (registry+https://github.com/rust-lang/crates.io-index)" = "a9f8082297d534141b30c8d39e9b1773713ab50fdbe4ff30f750d063b3bfd701"
+"checksum line-wrap 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "f30344350a2a51da54c1d53be93fade8a237e545dbcc4bdbe635413f2117cab9"
 "checksum lock_api 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)" = "c4da24a77a3d8a6d4862d95f72e6fdb9c09a643ecdb402d754004a557f2bec75"
 "checksum log 0.4.11 (registry+https://github.com/rust-lang/crates.io-index)" = "4fabed175da42fed1fa0746b0ea71f412aa9d35e76e95e59b192c64b9dc2bf8b"
 "checksum mac 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "c41e0c4fef86961ac6d6f8a82609f55f31b05e4fce149ac5710e439df7619ba4"
@@ -922,7 +1138,11 @@ dependencies = [
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 "checksum nodrop 0.1.14 (registry+https://github.com/rust-lang/crates.io-index)" = "72ef4a56884ca558e5ddb05a1d1e7e1bfd9a68d9ed024c21704cc98872dae1bb"
 "checksum ntapi 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)" = "7a31937dea023539c72ddae0e3571deadc1414b300483fa7aaec176168cfa9d2"
+"checksum num-integer 0.1.43 (registry+https://github.com/rust-lang/crates.io-index)" = "8d59457e662d541ba17869cf51cf177c0b5f0cbf476c66bdc90bf1edac4f875b"
+"checksum num-traits 0.2.12 (registry+https://github.com/rust-lang/crates.io-index)" = "ac267bcc07f48ee5f8935ab0d24f316fb722d7a1292e2913f0cc196b29ffd611"
 "checksum object 0.20.0 (registry+https://github.com/rust-lang/crates.io-index)" = "1ab52be62400ca80aa00285d25253d7f7c437b7375c4de678f5405d3afe82ca5"
+"checksum onig 6.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "bd91ccd8a02fce2f7e8a86655aec67bc6c171e6f8e704118a0e8c4b866a05a8a"
+"checksum onig_sys 69.5.0 (registry+https://github.com/rust-lang/crates.io-index)" = "3814583fad89f3c60ae0701d80e87e1fd3028741723deda72d0d4a0ecf0cb0db"
 "checksum pager 0.15.0 (registry+https://github.com/rust-lang/crates.io-index)" = "b69ced2bfa977c4541743a7427b89c94120684791a9629941fe6028dccab6528"
 "checksum parking_lot 0.10.2 (registry+https://github.com/rust-lang/crates.io-index)" = "d3a704eb390aafdc107b0e392f56a82b668e3a71366993b5340f5833fd62505e"
 "checksum parking_lot_core 0.7.2 (registry+https://github.com/rust-lang/crates.io-index)" = "d58c7c768d4ba344e3e8d72518ac13e259d7c7ade24167003b8488e10b6740a3"
@@ -931,6 +1151,8 @@ dependencies = [
 "checksum phf_generator 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)" = "17367f0cc86f2d25802b2c26ee58a7b23faeccf78a396094c13dced0d0182526"
 "checksum phf_macros 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)" = "7f6fde18ff429ffc8fe78e2bf7f8b7a5a5a6e2a8b58bc5a9ac69198bbda9189c"
 "checksum phf_shared 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)" = "c00cf8b9eafe68dde5e9eaa2cef8ee84a9336a47d566ec55ca16589633b65af7"
+"checksum pkg-config 0.3.18 (registry+https://github.com/rust-lang/crates.io-index)" = "d36492546b6af1463394d46f0c834346f31548646f6ba10849802c9c9a27ac33"
+"checksum plist 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "7b336d94e8e4ce29bf15bba393164629764744c567e8ad306cc1fdd0119967fd"
 "checksum ppv-lite86 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)" = "237a5ed80e274dbc66f86bd59c1e25edc039660be53194b5fe0a482e0f2612ea"
 "checksum precomputed-hash 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "925383efa346730478fb4838dbe9137d2a47675ad789c546d150a6e1dd4ab31c"
 "checksum proc-macro-error 1.0.3 (registry+https://github.com/rust-lang/crates.io-index)" = "fc175e9777c3116627248584e8f8b3e2987405cabe1c0adf7d1dd28f09dc7880"
@@ -944,8 +1166,11 @@ dependencies = [
 "checksum rand_hc 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "ca3129af7b92a17112d59ad498c6f81eaf463253766b90396d39ea7a39d6613c"
 "checksum rand_pcg 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "16abd0c1b639e9eb4d7c50c0b8100b0d0f849be2349829c740fe8e6eb4816429"
 "checksum redox_syscall 0.1.57 (registry+https://github.com/rust-lang/crates.io-index)" = "41cc0f7e4d5d4544e8861606a285bb08d3e70712ccc7d2b84d7c0ccfaf4b05ce"
+"checksum regex-syntax 0.6.18 (registry+https://github.com/rust-lang/crates.io-index)" = "26412eb97c6b088a6997e05f69403a802a92d520de2f8e63c2b65f9e0f47c4e8"
 "checksum rustc-demangle 0.1.16 (registry+https://github.com/rust-lang/crates.io-index)" = "4c691c0e608126e00913e33f0ccf3727d5fc84573623b8d65b2df340b5201783"
 "checksum ryu 1.0.5 (registry+https://github.com/rust-lang/crates.io-index)" = "71d301d4193d031abdd79ff7e3dd721168a9572ef3fe51a1517aba235bd8f86e"
+"checksum safemem 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)" = "ef703b7cb59335eae2eb93ceb664c0eb7ea6bf567079d843e09420219668e072"
+"checksum same-file 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)" = "93fc1dc3aaa9bfed95e02e6eadabb4baf7e3078b0bd1b4d7b6b0b68378900502"
 "checksum scopeguard 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "d29ab0c6d3fc0ee92fe66e2d99f700eab17a8d57d1c1d3b748380fb20baa78cd"
 "checksum selectors 0.22.0 (registry+https://github.com/rust-lang/crates.io-index)" = "df320f1889ac4ba6bc0cdc9c9af7af4bd64bb927bccdf32d81140dc1f9be12fe"
 "checksum serde 1.0.114 (registry+https://github.com/rust-lang/crates.io-index)" = "5317f7588f0a5078ee60ef675ef96735a1442132dc645eb1d12c018620ed8cd3"
@@ -967,6 +1192,7 @@ dependencies = [
 "checksum structopt-derive 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)" = "510413f9de616762a4fbeab62509bf15c729603b72d7cd71280fbca431b1c118"
 "checksum syn 1.0.34 (registry+https://github.com/rust-lang/crates.io-index)" = "936cae2873c940d92e697597c5eee105fb570cd5689c695806f672883653349b"
 "checksum syn-mid 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)" = "7be3539f6c128a931cf19dcee741c1af532c7fd387baa739c03dd2e96479338a"
+"checksum syntect 4.3.0 (registry+https://github.com/rust-lang/crates.io-index)" = "b57a45fdcf4891bc79f635be5c559210a4cfa464891f969724944c713282eedb"
 "checksum tendril 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)" = "707feda9f2582d5d680d733e38755547a3e8fb471e7ba11452ecfd9ce93a5d3b"
 "checksum textwrap 0.11.0 (registry+https://github.com/rust-lang/crates.io-index)" = "d326610f408c7a4eb6f51c37c330e496b08506c9457c9d34287ecc38809fb060"
 "checksum thin-slice 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "8eaa81235c7058867fa8c0e7314f33dcce9c215f535d1913822a2b3f5e289f3c"
@@ -976,8 +1202,11 @@ dependencies = [
 "checksum unicode-xid 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "f7fe0bb3479651439c9112f72b6c505038574c9fbb575ed1bf3b797fa39dd564"
 "checksum utf-8 0.7.5 (registry+https://github.com/rust-lang/crates.io-index)" = "05e42f7c18b8f902290b009cde6d651262f956c98bc51bca4cd1d511c9cd85c7"
 "checksum version_check 0.9.2 (registry+https://github.com/rust-lang/crates.io-index)" = "b5a972e5669d67ba988ce3dc826706fb0a8b01471c088cb0b6110b805cc36aed"
+"checksum walkdir 2.3.1 (registry+https://github.com/rust-lang/crates.io-index)" = "777182bc735b6424e1a57516d35ed72cb8019d85c8c9bf536dccb3445c1a2f7d"
 "checksum wasi 0.9.0+wasi-snapshot-preview1 (registry+https://github.com/rust-lang/crates.io-index)" = "cccddf32554fecc6acb585f82a32a72e28b48f8c4c1883ddfeeeaa96f7d8e519"
 "checksum winapi 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)" = "5c839a674fcd7a98952e593242ea400abe93992746761e38641405d28b00f419"
 "checksum winapi-i686-pc-windows-gnu 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "ac3b87c63620426dd9b991e5ce0329eff545bccbbb34f3be09ff6fb6ab51b7b6"
+"checksum winapi-util 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)" = "70ec6ce85bb158151cae5e5c87f95a8e97d2c0c4b001223f33a334e3ce5de178"
 "checksum winapi-x86_64-pc-windows-gnu 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
+"checksum xml-rs 0.8.3 (registry+https://github.com/rust-lang/crates.io-index)" = "b07db065a5cf61a7e4ba64f29e67db906fb1787316516c4e6e5ff0fea1efcd8a"
 "checksum xml5ever 0.16.1 (registry+https://github.com/rust-lang/crates.io-index)" = "0b1b52e6e8614d4a58b8e70cf51ec0cc21b256ad8206708bcff8139b5bbd6a59"
diff --git a/Cargo.toml b/Cargo.toml
index 1ef898d..fe762c0 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -38,3 +38,8 @@ features = ["derive"]
 [dependencies.structopt]
 version = "0.3.15"
 default-features = false
+
+[dependencies.syntect]
+version = "4.3.0"
+default-features = false
+features = ["parsing", "regex-onig", "assets", "dump-load"]
diff --git a/src/viewer/text/rich.rs b/src/viewer/text/rich.rs
index 27ea3a6..2a57066 100644
--- a/src/viewer/text/rich.rs
+++ b/src/viewer/text/rich.rs
@@ -10,15 +10,19 @@ use crate::viewer;
 
 type RichString = text_renderer::TaggedString<Vec<text_renderer::RichAnnotation>>;
 
-#[derive(Clone, Debug)]
+#[derive(Debug)]
 pub struct RichTextRenderer {
     line_length: usize,
+    syntax_set: syntect::parsing::SyntaxSet,
+    theme_set: syntect::highlighting::ThemeSet,
 }
 
 impl RichTextRenderer {
     pub fn new() -> Self {
         Self {
             line_length: viewer::get_line_length(),
+            syntax_set: syntect::parsing::SyntaxSet::load_defaults_newlines(),
+            theme_set: syntect::highlighting::ThemeSet::load_defaults(),
         }
     }
 
@@ -26,6 +30,34 @@ impl RichTextRenderer {
         let content = get_styled_content(ts);
         write!(io::stdout(), "{}", content)
     }
+
+    fn render_syntax(&self, line: &[(syntect::highlighting::Style, &str)]) -> io::Result<()> {
+        use crossterm::style::{Attribute, Color};
+        use syntect::highlighting::FontStyle;
+
+        for (style, text) in line {
+            let mut content = crossterm::style::style(text).with(Color::Rgb {
+                r: style.foreground.r,
+                g: style.foreground.g,
+                b: style.foreground.b,
+            });
+            if style.font_style.contains(FontStyle::BOLD) {
+                // TODO: investigate why NoBold does not work
+                content = content
+                    .attribute(Attribute::Bold)
+                    .attribute(Attribute::Reset);
+            }
+            if style.font_style.contains(FontStyle::UNDERLINE) {
+                content = content.attribute(Attribute::Underlined);
+            }
+            if style.font_style.contains(FontStyle::ITALIC) {
+                content = content.attribute(Attribute::Italic);
+            }
+            write!(io::stdout(), "{}", content)?;
+        }
+
+        Ok(())
+    }
 }
 
 impl super::Printer for RichTextRenderer {
@@ -55,9 +87,17 @@ impl super::Printer for RichTextRenderer {
     }
 
     fn print_code(&self, indent: usize, code: &doc::Text) -> io::Result<()> {
-        for line in code.plain.split('\n') {
-            writeln!(io::stdout(), "{}{}", " ".repeat(indent), line)?;
+        let syntax = self.syntax_set.find_syntax_by_extension("rs").unwrap();
+        let theme = &self.theme_set.themes["base16-eighties.dark"];
+        let mut h = syntect::easy::HighlightLines::new(syntax, theme);
+
+        for line in syntect::util::LinesWithEndings::from(&code.plain) {
+            let ranges = h.highlight(line, &self.syntax_set);
+            write!(io::stdout(), "{}", " ".repeat(indent))?;
+            self.render_syntax(&ranges)?;
         }
+        writeln!(io::stdout())?;
+
         Ok(())
     }
 
@@ -87,7 +127,7 @@ fn get_styled_content(ts: &RichString) -> crossterm::style::StyledContent<&str>
             RichAnnotation::Link(_) => content.attribute(Attribute::Underlined),
             RichAnnotation::Image => content,
             RichAnnotation::Emphasis => content.attribute(Attribute::Italic),
-            // TODO: investigeate why NoBold does not work
+            // TODO: investigate why NoBold does not work
             RichAnnotation::Strong => content
                 .attribute(Attribute::Bold)
                 .attribute(Attribute::Reset),