feat: v0.8.0 —— 修复围栏空行断状态，代码块改为真正的语法高亮

修复
- highlightBlock 遇到空行直接 return，把围栏状态重置了：代码块中间只要有一条
  空行，后面的行就不再按代码处理（这正是 #include 之后代码变回普通文本的原因）
- 空行现在会延续围栏状态；闭合围栏行也不再被误判成新的开围栏

语法高亮
- 新增 CodeHighlight：自己写的轻量 tokenizer，不依赖第三方库
- 支持 C / C++ / Python / JavaScript / TypeScript / Java / Rust / Go /
  JSON / Bash / SQL / YAML，按 info string 识别
- 关键字、类型、字符串、数字、行/块注释（支持跨行）、C/C++ 预处理指令分色
- 围栏行在源码模式下改成灰色标记色，不再是代码红
- 编辑模式与源代码模式共用同一套 token 着色

其它
- 主题新增 5 个代码 token 颜色（浅色 / 深色各一套）
- 版本 0.8.0，README 补充支持语言

README.md

@@ -2,7 +2,7 @@
 
 一个轻量的跨平台 Markdown 编辑器，基于 **Qt 5 / C++17** 构建。
 
-当前版本 **0.7.0**。
+当前版本 **0.8.0**。
 
 ## 界面
 
@@ -26,6 +26,9 @@
 - 行号栏、当前行高亮
 - 围栏代码块显示成带圆角边框的面板，右上角有「复制」按钮
   （源代码模式下不显示这些装饰）
+- 代码块按语言做语法高亮：C / C++ / Python / JavaScript / TypeScript /
+  Java / Rust / Go / JSON / Bash / SQL / YAML，关键字、字符串、数字、
+  注释、预处理指令分色；不认识的标记语言就按等宽纯文本显示
 - `Tab` / `Shift+Tab` 整行缩进，选中多行时批量缩进
 - 自动换行（`Alt+Z`）、`Ctrl+滚轮` 或 `Ctrl++` / `Ctrl+-` 缩放字号
 - 撤销 / 重做、剪切 / 复制 / 粘贴，菜单项会跟随可用状态自动灰显

VoiletMark.pro

@@ -1,6 +1,6 @@
 TEMPLATE = app
 TARGET   = VoiletMark
-VERSION  = 0.7.0
+VERSION  = 0.8.0
 
 QT += core gui widgets printsupport
 
@@ -23,6 +23,7 @@ SOURCES += \
     src/MarkdownEditor.cpp \
     src/MarkdownHighlighter.cpp \
     src/MarkdownRenderer.cpp \
+    src/CodeHighlight.cpp \
     src/LanguageManager.cpp \
     src/ThemeManager.cpp
 
@@ -31,6 +32,7 @@ HEADERS += \
     src/MarkdownEditor.h \
     src/MarkdownHighlighter.h \
     src/MarkdownRenderer.h \
+    src/CodeHighlight.h \
     src/LanguageManager.h \
     src/ThemeManager.h
 

src/CodeHighlight.cpp

@@ -0,0 +1,334 @@
+#include "CodeHighlight.h"
+
+#include <QHash>
+#include <QSet>
+
+namespace CodeHighlight {
+namespace {
+
+struct LanguageDef
+{
+    QSet<QString> keywords;
+    QSet<QString> types;
+    QStringList lineComments;
+    QString blockStart;
+    QString blockEnd;
+    QString quotes = QStringLiteral("\"'");
+    bool preprocessor = false;
+    bool caseInsensitive = false;
+};
+
+QSet<QString> words(const char *list)
+{
+    QSet<QString> set;
+    const QString text = QString::fromLatin1(list);
+    for (const QString &word : text.split(QLatin1Char(' '), Qt::SkipEmptyParts))
+        set.insert(word);
+    return set;
+}
+
+const QHash<int, LanguageDef> &definitions()
+{
+    static const QHash<int, LanguageDef> table = [] {
+        QHash<int, LanguageDef> defs;
+
+        LanguageDef c;
+        c.keywords = words("auto break case const continue default do else enum extern for goto if "
+                           "inline long register restrict return short signed sizeof static struct "
+                           "switch typedef union unsigned void volatile while _Bool _Static_assert");
+        c.types = words("char double float int size_t ssize_t ptrdiff_t FILE int8_t int16_t int32_t "
+                        "int64_t uint8_t uint16_t uint32_t uint64_t bool");
+        c.lineComments = QStringList{QStringLiteral("//")};
+        c.blockStart = QStringLiteral("/*");
+        c.blockEnd = QStringLiteral("*/");
+        c.preprocessor = true;
+        defs.insert(int(Language::C), c);
+
+        LanguageDef cpp = c;
+        cpp.keywords.unite(words("alignas alignof and asm bool catch class concept constexpr const_cast "
+                                 "co_await co_return co_yield decltype delete dynamic_cast explicit export "
+                                 "false friend mutable namespace new noexcept not nullptr operator or "
+                                 "override private protected public reinterpret_cast static_cast template "
+                                 "this throw true try typeid typename using virtual xor final requires"));
+        cpp.types.unite(words("std string vector map set unique_ptr shared_ptr size_t"));
+        defs.insert(int(Language::Cpp), cpp);
+
+        LanguageDef py;
+        py.keywords = words("and as assert async await break class continue def del elif else except False "
+                            "finally for from global if import in is lambda None nonlocal not or pass raise "
+                            "return True try while with yield match case");
+        py.types = words("int float str bytes list dict set tuple bool object");
+        py.lineComments = QStringList{QStringLiteral("#")};
+        py.quotes = QStringLiteral("\"'");
+        defs.insert(int(Language::Python), py);
+
+        LanguageDef js;
+        js.keywords = words("async await break case catch class const continue debugger default delete do "
+                            "else export extends finally for function if import in instanceof let new of "
+                            "return static super switch this throw try typeof var void while with yield "
+                            "null true false undefined");
+        js.types = words("String Number Boolean Object Array Promise Map Set JSON Math Date RegExp");
+        js.lineComments = QStringList{QStringLiteral("//")};
+        js.blockStart = QStringLiteral("/*");
+        js.blockEnd = QStringLiteral("*/");
+        js.quotes = QStringLiteral("\"'\x60");
+        defs.insert(int(Language::JavaScript), js);
+
+        LanguageDef ts = js;
+        ts.keywords.unite(words("abstract declare enum implements interface keyof namespace never readonly "
+                                "satisfies type unknown infer is asserts override private protected public "
+                                "any symbol bigint"));
+        ts.types.unite(words("string number boolean any unknown never void"));
+        defs.insert(int(Language::TypeScript), ts);
+
+        LanguageDef java;
+        java.keywords = words("abstract assert break case catch class const continue default do else enum "
+                              "extends final finally for goto if implements import instanceof interface "
+                              "native new package private protected public return static strictfp super "
+                              "switch synchronized this throw throws transient try volatile while var "
+                              "true false null");
+        java.types = words("byte short int long float double char boolean void String Object List Map Set");
+        java.lineComments = QStringList{QStringLiteral("//")};
+        java.blockStart = QStringLiteral("/*");
+        java.blockEnd = QStringLiteral("*/");
+        defs.insert(int(Language::Java), java);
+
+        LanguageDef rust;
+        rust.keywords = words("as async await break const continue crate dyn else enum extern false fn for "
+                              "if impl in let loop match mod move mut pub ref return self Self static "
+                              "struct super trait true type unsafe use where while yield");
+        rust.types = words("i8 i16 i32 i64 i128 u8 u16 u32 u64 u128 f32 f64 bool char str String Vec Option "
+                           "Result Box");
+        rust.lineComments = QStringList{QStringLiteral("//")};
+        rust.blockStart = QStringLiteral("/*");
+        rust.blockEnd = QStringLiteral("*/");
+        defs.insert(int(Language::Rust), rust);
+
+        LanguageDef go;
+        go.keywords = words("break case chan const continue default defer else fallthrough for func go goto "
+                            "if import interface map package range return select struct switch type var "
+                            "true false nil iota");
+        go.types = words("bool byte complex64 complex128 error float32 float64 int int8 int16 int32 int64 "
+                         "rune string uint uint8 uint16 uint32 uint64 uintptr any");
+        go.lineComments = QStringList{QStringLiteral("//")};
+        go.blockStart = QStringLiteral("/*");
+        go.blockEnd = QStringLiteral("*/");
+        go.quotes = QStringLiteral("\"'\x60");
+        defs.insert(int(Language::Go), go);
+
+        LanguageDef json;
+        json.keywords = words("true false null");
+        json.lineComments = QStringList();
+        json.quotes = QStringLiteral("\"");
+        defs.insert(int(Language::Json), json);
+
+        LanguageDef bash;
+        bash.keywords = words("if then else elif fi for while until do done case esac function in select "
+                              "time return exit local export readonly declare unset echo printf cd source "
+                              "alias set shift trap true false");
+        bash.lineComments = QStringList{QStringLiteral("#")};
+        bash.quotes = QStringLiteral("\"'\x60");
+        defs.insert(int(Language::Bash), bash);
+
+        LanguageDef sql;
+        sql.keywords = words("select from where insert into values update set delete create table drop alter "
+                             "index view join left right inner outer full on group by order having limit "
+                             "offset union all as and or not null is in like between distinct case when "
+                             "then else end exists primary key foreign references default unique check");
+        sql.types = words("int integer bigint smallint varchar char text date time timestamp boolean float "
+                          "double decimal numeric");
+        sql.lineComments = QStringList{QStringLiteral("--")};
+        sql.blockStart = QStringLiteral("/*");
+        sql.blockEnd = QStringLiteral("*/");
+        sql.caseInsensitive = true;
+        defs.insert(int(Language::Sql), sql);
+
+        LanguageDef yaml;
+        yaml.keywords = words("true false null yes no on off");
+        yaml.lineComments = QStringList{QStringLiteral("#")};
+        defs.insert(int(Language::Yaml), yaml);
+
+        return defs;
+    }();
+
+    return table;
+}
+
+const LanguageDef *definition(Language language)
+{
+    const auto &defs = definitions();
+    const auto it = defs.constFind(int(language));
+    return it == defs.constEnd() ? nullptr : &it.value();
+}
+
+} // namespace
+
+Language fromInfoString(const QString &info)
+{
+    QString name = info.trimmed().toLower();
+    if (name.isEmpty())
+        return Language::None;
+    name = name.section(QLatin1Char(' '), 0, 0);
+
+    static const QHash<QString, Language> aliases = {
+        {QStringLiteral("c"), Language::C},
+        {QStringLiteral("h"), Language::C},
+        {QStringLiteral("cpp"), Language::Cpp},
+        {QStringLiteral("c++"), Language::Cpp},
+        {QStringLiteral("cc"), Language::Cpp},
+        {QStringLiteral("cxx"), Language::Cpp},
+        {QStringLiteral("hpp"), Language::Cpp},
+        {QStringLiteral("python"), Language::Python},
+        {QStringLiteral("py"), Language::Python},
+        {QStringLiteral("javascript"), Language::JavaScript},
+        {QStringLiteral("js"), Language::JavaScript},
+        {QStringLiteral("jsx"), Language::JavaScript},
+        {QStringLiteral("mjs"), Language::JavaScript},
+        {QStringLiteral("typescript"), Language::TypeScript},
+        {QStringLiteral("ts"), Language::TypeScript},
+        {QStringLiteral("tsx"), Language::TypeScript},
+        {QStringLiteral("java"), Language::Java},
+        {QStringLiteral("rust"), Language::Rust},
+        {QStringLiteral("rs"), Language::Rust},
+        {QStringLiteral("go"), Language::Go},
+        {QStringLiteral("golang"), Language::Go},
+        {QStringLiteral("json"), Language::Json},
+        {QStringLiteral("bash"), Language::Bash},
+        {QStringLiteral("sh"), Language::Bash},
+        {QStringLiteral("shell"), Language::Bash},
+        {QStringLiteral("zsh"), Language::Bash},
+        {QStringLiteral("sql"), Language::Sql},
+        {QStringLiteral("yaml"), Language::Yaml},
+        {QStringLiteral("yml"), Language::Yaml},
+    };
+
+    return aliases.value(name, Language::None);
+}
+
+QVector<Span> tokenize(const QString &text, Language language, bool inBlockComment,
+                       bool *newBlockComment)
+{
+    QVector<Span> spans;
+    if (newBlockComment)
+        *newBlockComment = inBlockComment;
+
+    const LanguageDef *def = definition(language);
+    if (!def)
+        return spans;
+
+    const int length = text.size();
+    bool comment = inBlockComment;
+    int index = 0;
+
+    if (def->preprocessor) {
+        int start = 0;
+        while (start < length && text.at(start).isSpace())
+            ++start;
+        if (start < length && text.at(start) == QLatin1Char('#')) {
+            int end = start + 1;
+            while (end < length
+                   && (text.at(end).isLetterOrNumber() || text.at(end) == QLatin1Char('_')))
+                ++end;
+            spans.append({start, end - start, Token::Preprocessor});
+            index = end;
+        }
+    }
+
+    while (index < length) {
+        if (comment) {
+            const int end = text.indexOf(def->blockEnd, index);
+            if (end < 0) {
+                spans.append({index, length - index, Token::Comment});
+                index = length;
+                break;
+            }
+            spans.append({index, end + def->blockEnd.size() - index, Token::Comment});
+            index = end + def->blockEnd.size();
+            comment = false;
+            continue;
+        }
+
+        bool lineComment = false;
+        for (const QString &prefix : def->lineComments) {
+            if (text.mid(index, prefix.size()) == prefix) {
+                spans.append({index, length - index, Token::Comment});
+                index = length;
+                lineComment = true;
+                break;
+            }
+        }
+        if (lineComment)
+            break;
+
+        if (!def->blockStart.isEmpty()
+            && text.mid(index, def->blockStart.size()) == def->blockStart) {
+            const int end = text.indexOf(def->blockEnd, index + def->blockStart.size());
+            if (end < 0) {
+                spans.append({index, length - index, Token::Comment});
+                comment = true;
+                index = length;
+            } else {
+                spans.append({index, end + def->blockEnd.size() - index, Token::Comment});
+                index = end + def->blockEnd.size();
+            }
+            continue;
+        }
+
+        const QChar current = text.at(index);
+        if (def->quotes.contains(current)) {
+            int end = index + 1;
+            while (end < length) {
+                if (text.at(end) == QLatin1Char('\\')) {
+                    end += 2;
+                    continue;
+                }
+                if (text.at(end) == current) {
+                    ++end;
+                    break;
+                }
+                ++end;
+            }
+            end = qMin(end, length);
+            spans.append({index, end - index, Token::String});
+            index = end;
+            continue;
+        }
+
+        if (current.isDigit()) {
+            int end = index + 1;
+            while (end < length) {
+                const QChar ch = text.at(end);
+                if (ch.isLetterOrNumber() || ch == QLatin1Char('.') || ch == QLatin1Char('_'))
+                    ++end;
+                else
+                    break;
+            }
+            spans.append({index, end - index, Token::Number});
+            index = end;
+            continue;
+        }
+
+        if (current.isLetter() || current == QLatin1Char('_')) {
+            int end = index + 1;
+            while (end < length
+                   && (text.at(end).isLetterOrNumber() || text.at(end) == QLatin1Char('_')))
+                ++end;
+            const QString word = text.mid(index, end - index);
+            const QString probe = def->caseInsensitive ? word.toLower() : word;
+            if (def->types.contains(probe))
+                spans.append({index, end - index, Token::Type});
+            else if (def->keywords.contains(probe))
+                spans.append({index, end - index, Token::Keyword});
+            index = end;
+            continue;
+        }
+
+        ++index;
+    }
+
+    if (newBlockComment)
+        *newBlockComment = comment;
+    return spans;
+}
+
+} // namespace CodeHighlight

src/CodeHighlight.h

@@ -0,0 +1,44 @@
+#pragma once
+
+#include <QString>
+#include <QVector>
+
+/// 围栏代码块里的轻量语法高亮。
+///
+/// 不依赖任何第三方库，按语言给出一组关键字 + 注释 / 字符串规则，
+/// 逐行扫描出 token，由 MarkdownHighlighter 上色。
+namespace CodeHighlight {
+
+enum class Language {
+    None = 0,
+    C,
+    Cpp,
+    Python,
+    JavaScript,
+    TypeScript,
+    Java,
+    Rust,
+    Go,
+    Json,
+    Bash,
+    Sql,
+    Yaml,
+    Count
+};
+
+enum class Token { Keyword, Type, String, Number, Comment, Preprocessor };
+
+struct Span {
+    int start = 0;
+    int length = 0;
+    Token token = Token::Keyword;
+};
+
+/// 从 ```cpp 这类 info string 里识别语言（大小写不敏感）。
+Language fromInfoString(const QString &info);
+
+/// 扫描一行，返回需要着色的区间；inBlockComment 传入 / 传出跨行注释状态。
+QVector<Span> tokenize(const QString &text, Language language, bool inBlockComment,
+                       bool *newBlockComment);
+
+} // namespace CodeHighlight

src/MarkdownHighlighter.cpp

@@ -8,7 +8,22 @@
 
 namespace {
 constexpr int StateNormal = 0;
-constexpr int StateInFence = 1;
+
+// 围栏状态：1 + 语言编号 * 2 + 是否在块注释里。
+int fenceState(int language, bool inComment)
+{
+    return 1 + language * 2 + (inComment ? 1 : 0);
+}
+
+int stateLanguage(int state)
+{
+    return (state - 1) / 2;
+}
+
+bool stateInComment(int state)
+{
+    return (state - 1) % 2 != 0;
+}
 
 QStringList monospaceFamilies()
 {
@@ -103,6 +118,22 @@ void MarkdownHighlighter::rebuildFormats()
     m_fenceFormat.setFontFixedPitch(true);
     m_fenceFormat.setForeground(c.editorText);
 
+    m_fenceMarkerFormat = QTextCharFormat();
+    m_fenceMarkerFormat.setFontFamilies(monospaceFamilies());
+    m_fenceMarkerFormat.setFontFixedPitch(true);
+    m_fenceMarkerFormat.setForeground(c.placeholder);
+
+    auto tokenColor = [](const QColor &color) {
+        QTextCharFormat format;
+        format.setForeground(color);
+        return format;
+    };
+    m_codeKeywordFormat = tokenColor(c.codeKeyword);
+    m_codeStringFormat = tokenColor(c.codeString);
+    m_codeNumberFormat = tokenColor(c.codeNumber);
+    m_codeCommentFormat = tokenColor(c.codeComment);
+    m_codePreprocessorFormat = tokenColor(c.codePreprocessor);
+
     m_linkFormat = QTextCharFormat();
     m_linkFormat.setForeground(c.link);
     m_linkFormat.setFontUnderline(true);
@@ -141,6 +172,24 @@ QTextCharFormat MarkdownHighlighter::compose(const QTextCharFormat &specific) co
     return result;
 }
 
+const QTextCharFormat &MarkdownHighlighter::tokenFormat(CodeHighlight::Token token) const
+{
+    switch (token) {
+    case CodeHighlight::Token::Keyword:
+    case CodeHighlight::Token::Type:
+        return m_codeKeywordFormat;
+    case CodeHighlight::Token::String:
+        return m_codeStringFormat;
+    case CodeHighlight::Token::Number:
+        return m_codeNumberFormat;
+    case CodeHighlight::Token::Comment:
+        return m_codeCommentFormat;
+    case CodeHighlight::Token::Preprocessor:
+        return m_codePreprocessorFormat;
+    }
+    return m_codeKeywordFormat;
+}
+
 QTextCharFormat MarkdownHighlighter::hiddenFormat(const QColor &background) const
 {
     // 用“和背景同色 + 极小字号”把标记藏起来：文字仍然留在文档里，
@@ -187,46 +236,67 @@ void MarkdownHighlighter::applyDelimited(const QRegularExpression &pattern, cons
 
 void MarkdownHighlighter::highlightBlock(const QString &text)
 {
+    const int previousState = previousBlockState();
     setCurrentBlockState(StateNormal);
     m_blockBase = QTextCharFormat();
-    if (text.isEmpty())
+
+    const bool wasInFence = previousState > 0;
+    const int fenceLanguageId = wasInFence ? stateLanguage(previousState) : 0;
+    const auto fenceLanguage = static_cast<CodeHighlight::Language>(fenceLanguageId);
+    const bool fenceComment = wasInFence && stateInComment(previousState);
+
+    if (text.isEmpty()) {
+        // 空行也要把围栏状态传下去，否则代码块会被一条空行截断。
+        if (wasInFence)
+            setCurrentBlockState(fenceState(fenceLanguageId, fenceComment));
         return;
+    }
 
     const ThemeColors &c = ThemeManager::instance()->colors();
     const bool rendered = m_rendered;
     const bool active = isActiveLine();
 
     static const QRegularExpression fencePattern(QStringLiteral("^\\s{0,3}(?:```|~~~)"));
-    const bool inFence = previousBlockState() == StateInFence;
     const bool fenceLine = fencePattern.match(text).hasMatch();
 
     // ---- 围栏代码块 -----------------------------------------------------
-    if (inFence) {
+    if (wasInFence) {
-        if (!fenceLine)
+        if (fenceLine) {
-            setCurrentBlockState(StateInFence);
+            // 闭合围栏行
-        if (rendered) {
+            if (rendered && !active)
-            if (fenceLine && !active) {
-                apply(0, text.length(), hiddenFormat(c.editorBase));
-            } else {
-                m_blockBase = m_fenceFormat;
-                apply(0, text.length(), m_fenceFormat);
-            }
-        } else {
-            m_blockBase = m_codeFormat;
-            apply(0, text.length(), m_codeFormat);
-        }
-        return;
-    }
-    if (fenceLine) {
-        setCurrentBlockState(StateInFence);
-        if (rendered) {
-            if (!active)
                 apply(0, text.length(), hiddenFormat(c.editorBase));
             else
-                apply(0, text.length(), m_fenceFormat);
+                apply(0, text.length(), m_fenceMarkerFormat);
-        } else {
+            return;
-            apply(0, text.length(), m_codeFormat);
         }
+
+        bool inComment = fenceComment;
+        bool endsInComment = inComment;
+        m_blockBase = m_fenceFormat;
+        apply(0, text.length(), m_fenceFormat);
+
+        if (fenceLanguage != CodeHighlight::Language::None) {
+            const QVector<CodeHighlight::Span> spans =
+                CodeHighlight::tokenize(text, fenceLanguage, inComment, &endsInComment);
+            for (const CodeHighlight::Span &span : spans)
+                apply(span.start, span.length, compose(tokenFormat(span.token)));
+        }
+
+        setCurrentBlockState(fenceState(fenceLanguageId, endsInComment));
+        return;
+    }
+
+    if (fenceLine) {
+        // 开围栏行：从 info string 里认语言
+        QString info = text.trimmed();
+        info.remove(QRegularExpression(QStringLiteral("^(?:```|~~~)")));
+        const CodeHighlight::Language language = CodeHighlight::fromInfoString(info);
+        setCurrentBlockState(fenceState(int(language), false));
+
+        if (rendered && !active)
+            apply(0, text.length(), hiddenFormat(c.editorBase));
+        else
+            apply(0, text.length(), m_fenceMarkerFormat);
         return;
     }
 

src/MarkdownHighlighter.h

@@ -1,5 +1,7 @@
 #pragma once
 
+#include "CodeHighlight.h"
+
 #include <QColor>
 #include <QRegularExpression>
 #include <QSyntaxHighlighter>
@@ -42,6 +44,7 @@ private:
                         const QTextCharFormat &contentFormat, int contentGroup,
                         const QColor &hideAgainst);
     QTextCharFormat compose(const QTextCharFormat &specific) const;
+    const QTextCharFormat &tokenFormat(CodeHighlight::Token token) const;
     QTextCharFormat hiddenFormat(const QColor &background) const;
     bool isActiveLine() const;
 
@@ -56,6 +59,12 @@ private:
     QTextCharFormat m_emphasisFormat;
     QTextCharFormat m_codeFormat;
     QTextCharFormat m_fenceFormat;
+    QTextCharFormat m_fenceMarkerFormat;
+    QTextCharFormat m_codeKeywordFormat;
+    QTextCharFormat m_codeStringFormat;
+    QTextCharFormat m_codeNumberFormat;
+    QTextCharFormat m_codeCommentFormat;
+    QTextCharFormat m_codePreprocessorFormat;
     QTextCharFormat m_linkFormat;
     QTextCharFormat m_urlFormat;
     QTextCharFormat m_quoteFormat;

src/ThemeManager.cpp

@@ -93,6 +93,11 @@ ThemeColors lightColors()
     c.emphasis            = hex("#4b535c");
     c.code                = hex("#b4295a");
     c.codeBackground      = hex("#f2f4f7");
+    c.codeKeyword         = hex("#0550ae");
+    c.codeString          = hex("#0a7d3a");
+    c.codeNumber          = hex("#953800");
+    c.codeComment         = hex("#6e7781");
+    c.codePreprocessor    = hex("#8250df");
     c.link                = hex("#0969da");
     c.linkUrl             = hex("#6b7480");
     c.quote               = hex("#6b7480");
@@ -138,6 +143,11 @@ ThemeColors darkColors()
     c.emphasis            = hex("#c3c9d1");
     c.code                = hex("#ff8fbf");
     c.codeBackground      = hex("#292c33");
+    c.codeKeyword         = hex("#79b8ff");
+    c.codeString          = hex("#7ee787");
+    c.codeNumber          = hex("#ffab70");
+    c.codeComment         = hex("#8b949e");
+    c.codePreprocessor    = hex("#d2a8ff");
     c.link                = hex("#62a8ff");
     c.linkUrl             = hex("#7f8791");
     c.quote               = hex("#8b939d");

src/ThemeManager.h

@@ -44,6 +44,11 @@ struct ThemeColors
     QColor emphasis;
     QColor code;
     QColor codeBackground;
+    QColor codeKeyword;
+    QColor codeString;
+    QColor codeNumber;
+    QColor codeComment;
+    QColor codePreprocessor;
     QColor link;
     QColor linkUrl;
     QColor quote;