diff --git a/src/cutter.cpp b/src/cutter.cpp
index b532a2b5..d9f27c9c 100644
--- a/src/cutter.cpp
+++ b/src/cutter.cpp
@@ -849,7 +849,7 @@ void CutterCore::setSettings()
     //setConfig("bin.rawstr", "true");
 
     // Colors
-    setConfig("scr.color", true);
+    setConfig("scr.color", false);
     setConfig("scr.truecolor", false);
 }
 
diff --git a/src/cutter.pro b/src/cutter.pro
index 3df9f6e1..3bf880c6 100644
--- a/src/cutter.pro
+++ b/src/cutter.pro
@@ -78,7 +78,8 @@ SOURCES += \
     widgets/HexdumpWidget.cpp \
     utils/Configuration.cpp \
     utils/Colors.cpp \
-    dialogs/SaveProjectDialog.cpp
+    dialogs/SaveProjectDialog.cpp \
+    utils/TempConfig.cpp
 
 HEADERS  += \
     cutter.h \
@@ -127,7 +128,8 @@ HEADERS  += \
     widgets/HexdumpWidget.h \
     utils/Configuration.h \
     utils/Colors.h \
-    dialogs/SaveProjectDialog.h
+    dialogs/SaveProjectDialog.h \
+    utils/TempConfig.h
 
 FORMS    += \
     widgets/PreviewWidget.ui \
diff --git a/src/dialogs/XrefsDialog.cpp b/src/dialogs/XrefsDialog.cpp
index e69cbcbe..388e8f5f 100644
--- a/src/dialogs/XrefsDialog.cpp
+++ b/src/dialogs/XrefsDialog.cpp
@@ -1,6 +1,8 @@
 #include "XrefsDialog.h"
 #include "ui_XrefsDialog.h"
 
+#include "utils/TempConfig.h"
+
 #include "MainWindow.h"
 
 #include <QJsonArray>
@@ -19,11 +21,14 @@ XrefsDialog::XrefsDialog(QWidget *parent) :
     QTextDocument *asm_docu = ui->previewTextEdit->document();
     asm_docu->setDocumentMargin(10);
 
-    // Syntax highlight
-    highlighter = new Highlighter(ui->previewTextEdit->document());
+    setupPreviewFont();
+    setupPreviewColors();
 
     // Highlight current line
     connect(ui->previewTextEdit, SIGNAL(cursorPositionChanged()), this, SLOT(highlightCurrentLine()));
+
+    connect(Config(), SIGNAL(fontsUpdated()), this, SLOT(setupPreviewFont()));
+    connect(Config(), SIGNAL(colorsUpdated()), this, SLOT(setupPreviewColors()));
 }
 
 XrefsDialog::~XrefsDialog() {}
@@ -110,6 +115,18 @@ QString XrefsDialog::normalizeAddr(const QString& addr) const
     }
 }
 
+void XrefsDialog::setupPreviewFont()
+{
+    ui->previewTextEdit->setFont(Config()->getFont());
+}
+
+void XrefsDialog::setupPreviewColors()
+{
+    ui->previewTextEdit->setStyleSheet(QString("QPlainTextEdit { background-color: %1; color: %2; }")
+                                               .arg(ConfigColor("gui.background").name())
+                                               .arg(ConfigColor("btext").name()));
+}
+
 void XrefsDialog::highlightCurrentLine()
 {
     QList<QTextEdit::ExtraSelection> extraSelections;
@@ -152,20 +169,26 @@ void XrefsDialog::on_toTreeWidget_itemSelectionChanged()
 
 void XrefsDialog::updatePreview(RVA addr)
 {
+    // is the address part of a function, so we can use pdf?
+    bool isFunction = !core->cmdj("afij@" + QString::number(addr)).array().isEmpty();
+
+    TempConfig tempConfig;
+    tempConfig.set("scr.html", true);
+    tempConfig.set("scr.color", true);
+
     QString disass;
 
-    // is the address part of a function, so we can use pdf?
-    if (!core->cmdj("afij@" + QString::number(addr)).array().isEmpty())
+    if (isFunction)
         disass = core->cmd("pdf @ " + QString::number(addr));
     else
         disass = core->cmd("pd 10 @ " + QString::number(addr));
 
-    ui->previewTextEdit->setPlainText(disass.trimmed());
+    ui->previewTextEdit->document()->setHtml(disass);
 
     // Does it make any sense?
     ui->previewTextEdit->moveCursor(QTextCursor::End);
     ui->previewTextEdit->find(this->normalizeAddr(RAddressString(addr)), QTextDocument::FindBackward);
-    ui->previewTextEdit->moveCursor(QTextCursor::StartOfWord, QTextCursor::MoveAnchor);
+    ui->previewTextEdit->moveCursor(QTextCursor::StartOfLine, QTextCursor::MoveAnchor);
 }
 
 void XrefsDialog::updateLabels(QString name)
@@ -176,6 +199,10 @@ void XrefsDialog::updateLabels(QString name)
 
 void XrefsDialog::fillRefsForAddress(RVA addr, QString name, bool whole_function)
 {
+    TempConfig tempConfig;
+    tempConfig.set("scr.html", false);
+    tempConfig.set("scr.color", false);
+
     this->addr = addr;
     this->func_name = func_name;
 
diff --git a/src/dialogs/XrefsDialog.h b/src/dialogs/XrefsDialog.h
index d7024d0d..d1b7eb29 100644
--- a/src/dialogs/XrefsDialog.h
+++ b/src/dialogs/XrefsDialog.h
@@ -25,13 +25,14 @@ public:
     void fillRefsForAddress(RVA addr, QString name, bool whole_function);
 
 private slots:
-
     void on_fromTreeWidget_itemDoubleClicked(QTreeWidgetItem *item, int column);
-
     void on_toTreeWidget_itemDoubleClicked(QTreeWidgetItem *item, int column);
 
     QString normalizeAddr(const QString& addr) const;
 
+    void setupPreviewFont();
+    void setupPreviewColors();
+
     void highlightCurrentLine();
     void on_fromTreeWidget_itemSelectionChanged();
 
@@ -44,8 +45,6 @@ private:
     std::unique_ptr<Ui::XrefsDialog> ui;
     CutterCore *core;
 
-    Highlighter      *highlighter;
-
     void fillRefs(QList<XrefDescription> refs, QList<XrefDescription> xrefs);
     void updateLabels(QString name);
     void updatePreview(RVA addr);
diff --git a/src/utils/TempConfig.cpp b/src/utils/TempConfig.cpp
new file mode 100644
index 00000000..5c27617a
--- /dev/null
+++ b/src/utils/TempConfig.cpp
@@ -0,0 +1,60 @@
+
+#include <cassert>
+
+#include "cutter.h"
+#include "TempConfig.h"
+
+TempConfig::~TempConfig()
+{
+    for (auto i = resetValues.begin(); i != resetValues.end(); i++)
+    {
+        switch(i.value().type())
+        {
+            case QVariant::String:
+                Core()->setConfig(i.key(), i.value().toString());
+                break;
+            case QVariant::Int:
+                Core()->setConfig(i.key(), i.value().toInt());
+                break;
+            case QVariant::Bool:
+                Core()->setConfig(i.key(), i.value().toBool());
+                break;
+            default:
+                assert(false);
+                break;
+        }
+    }
+}
+
+TempConfig &TempConfig::set(const QString &key, const QString &value)
+{
+    if (!resetValues.contains(key))
+    {
+        resetValues[key] = Core()->getConfig(key);
+    }
+
+    Core()->setConfig(key, value);
+    return *this;
+}
+
+TempConfig &TempConfig::set(const QString &key, int value)
+{
+    if (!resetValues.contains(key))
+    {
+        resetValues[key] = Core()->getConfigi(key);
+    }
+
+    Core()->setConfig(key, value);
+    return *this;
+}
+
+TempConfig &TempConfig::set(const QString &key, bool value)
+{
+    if (!resetValues.contains(key))
+    {
+        resetValues[key] = Core()->getConfigb(key);
+    }
+
+    Core()->setConfig(key, value);
+    return *this;
+}
\ No newline at end of file
diff --git a/src/utils/TempConfig.h b/src/utils/TempConfig.h
new file mode 100644
index 00000000..4f6b8fb8
--- /dev/null
+++ b/src/utils/TempConfig.h
@@ -0,0 +1,22 @@
+
+#ifndef TEMPCONFIG_H
+#define TEMPCONFIG_H
+
+#include <QString>
+#include <QVariant>
+
+class TempConfig
+{
+public:
+    TempConfig() = default;
+    ~TempConfig();
+
+    TempConfig &set(const QString &key, const QString &value);
+    TempConfig &set(const QString &key, int value);
+    TempConfig &set(const QString &key, bool value);
+
+private:
+    QMap<QString, QVariant> resetValues;
+};
+
+#endif //TEMPCONFIG_H
diff --git a/src/widgets/DisassemblyWidget.cpp b/src/widgets/DisassemblyWidget.cpp
index 7816c662..7b0f3f50 100644
--- a/src/widgets/DisassemblyWidget.cpp
+++ b/src/widgets/DisassemblyWidget.cpp
@@ -4,6 +4,7 @@
 #include "utils/HexHighlighter.h"
 #include "utils/Configuration.h"
 #include "utils/Helpers.h"
+#include "utils/TempConfig.h"
 
 #include <QScrollBar>
 #include <QJsonArray>
@@ -108,11 +109,11 @@ QWidget* DisassemblyWidget::getTextWidget()
 
 QString DisassemblyWidget::readDisasm(const QString &cmd, bool stripLastNewline)
 {
-    Core()->setConfig("scr.html", true);
-    Core()->setConfig("scr.color", true);
+    TempConfig tempConfig;
+    tempConfig.set("scr.html", true)
+            .set("scr.color", true);
+
     QString disas = Core()->cmd(cmd);
-    Core()->setConfig("scr.html", false);
-    Core()->setConfig("scr.color", false);
 
     if (stripLastNewline)
     {
diff --git a/src/widgets/HexdumpWidget.cpp b/src/widgets/HexdumpWidget.cpp
index c9d81835..43165377 100644
--- a/src/widgets/HexdumpWidget.cpp
+++ b/src/widgets/HexdumpWidget.cpp
@@ -5,6 +5,7 @@
 
 #include "MainWindow.h"
 #include "utils/Helpers.h"
+#include "utils/TempConfig.h"
 
 #include <QTemporaryFile>
 #include <QFontDialog>
@@ -482,6 +483,9 @@ void HexdumpWidget::fillPlugins()
 
 std::array<QString, 3> HexdumpWidget::fetchHexdump(RVA offset, RVA bytes)
 {
+    TempConfig tempConfig;
+    tempConfig.set("scr.color", false);
+
     QString hexdump = Core()->cmd(QString("px %1 @ %2").arg(QString::number(bytes), QString::number(offset)));
 
     QString offsets;
diff --git a/src/widgets/SidebarWidget.cpp b/src/widgets/SidebarWidget.cpp
index 65f58e72..bd0f0f1f 100644
--- a/src/widgets/SidebarWidget.cpp
+++ b/src/widgets/SidebarWidget.cpp
@@ -3,6 +3,7 @@
 #include "DisassemblerGraphView.h"
 
 #include "utils/Helpers.h"
+#include "utils/TempConfig.h"
 
 #include <QTemporaryFile>
 #include <QFontDialog>
@@ -149,6 +150,11 @@ void SidebarWidget::get_refs_data(RVA addr)
 void SidebarWidget::fill_refs(QList<XrefDescription> refs, QList<XrefDescription> xrefs, QList<int> graph_data)
 {
     Q_UNUSED(graph_data);
+
+    TempConfig tempConfig;
+    tempConfig.set("scr.html", false)
+            .set("scr.color", false);
+
     this->xreFromTreeWidget_2->clear();
     for (int i = 0; i < refs.size(); ++i)
     {
@@ -196,6 +202,10 @@ void SidebarWidget::fill_refs(QList<XrefDescription> refs, QList<XrefDescription
 
 void SidebarWidget::fillOffsetInfo(QString off)
 {
+    TempConfig tempConfig;
+    tempConfig.set("scr.html", false)
+            .set("scr.color", false);
+
     ui->offsetTreeWidget->clear();
     QString raw = Core()->getOffsetInfo(off);
     QList<QString> lines = raw.split("\n", QString::SkipEmptyParts);