diff --git a/tests/jkqtcommmon/CMakeLists.txt b/tests/jkqtcommmon/CMakeLists.txt
new file mode 100644
index 0000000000..32f19d26d0
--- /dev/null
+++ b/tests/jkqtcommmon/CMakeLists.txt
@@ -0,0 +1,28 @@
+cmake_minimum_required(VERSION 3.23)
+
+set(TEST_NAME jkqtcommon_test)
+set(EXENAME ${TEST_NAME})
+
+message( STATUS "..   Building Unit Test ${TEST_NAME}" )
+
+set(CMAKE_INCLUDE_CURRENT_DIR ON)
+set(CMAKE_AUTOMOC ON)
+
+add_executable(${EXENAME} WIN32 ${SOURCES} ${HEADERS} ${RESOURCES} ${UIS})
+target_include_directories(${EXENAME} PRIVATE ../../lib)
+target_link_libraries(${EXENAME} PRIVATE ${jkqtplotter_namespace}JKQTCommon${jkqtplotter_LIBNAME_VERSION_PART})
+target_link_libraries(${EXENAME} PRIVATE Qt${QT_VERSION_MAJOR}::Test)
+
+target_sources(${EXENAME}
+  PRIVATE
+    ${TEST_NAME}.cpp
+)
+
+# Installation
+install(TARGETS ${EXENAME} RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR})
+add_test(NAME ${TEST_NAME} COMMAND ${EXENAME})
+
+#Installation of Qt DLLs on Windows
+jkqtplotter_deployqt(${EXENAME})
+
+
diff --git a/tests/jkqtcommmon/jkqtcommon_test.cpp b/tests/jkqtcommmon/jkqtcommon_test.cpp
new file mode 100644
index 0000000000..c5cf3b9173
--- /dev/null
+++ b/tests/jkqtcommmon/jkqtcommon_test.cpp
@@ -0,0 +1,238 @@
+#include <QObject>
+#include <QtTest>
+#include "jkqtcommon/jkqtpcsstools.h"
+
+namespace QTest {
+    template<>
+    char *toString(const JKQTPCSSParser::NumberWithUnit &n)
+    {
+        const QByteArray ba("JKQTPCSSParser::NumberWithUnit(" +
+                            QByteArray::number(n.number) + ", '" +
+                            n.unit.toLatin1() + "')");
+        return qstrdup(ba.data());
+    }
+}
+
+
+class testJKQTCommmon : public QObject
+{
+    Q_OBJECT
+
+public:
+    inline testJKQTCommmon() {
+    }
+    
+    inline ~testJKQTCommmon() {
+    }
+
+private slots:
+    inline void test_JKQTPCSSParser_readNumberWithUnit() {
+        JKQTPCSSParser::NumberWithUnit n;
+        QVERIFY_THROWS_NO_EXCEPTION(n=JKQTPCSSParser::readNumberWithUnit("100"));
+        QCOMPARE_EQ(n, JKQTPCSSParser::NumberWithUnit(100.0, ""));
+
+        QVERIFY_THROWS_NO_EXCEPTION(n=JKQTPCSSParser::readNumberWithUnit("100%"));
+        QCOMPARE_EQ(n, JKQTPCSSParser::NumberWithUnit(100.0, "%"));
+
+        QVERIFY_THROWS_NO_EXCEPTION(n=JKQTPCSSParser::readNumberWithUnit("100grad"));
+        QCOMPARE_EQ(n, JKQTPCSSParser::NumberWithUnit(100.0, "grad"));
+
+        QVERIFY_THROWS_NO_EXCEPTION(n=JKQTPCSSParser::readNumberWithUnit("-100grad"));
+        QCOMPARE_EQ(n, JKQTPCSSParser::NumberWithUnit(-100.0, "grad"));
+
+        QVERIFY_THROWS_NO_EXCEPTION(n=JKQTPCSSParser::readNumberWithUnit("-100.08grad"));
+        QCOMPARE_EQ(n, JKQTPCSSParser::NumberWithUnit(-100.08, "grad"));
+
+        QVERIFY_THROWS_NO_EXCEPTION(n=JKQTPCSSParser::readNumberWithUnit("+100.08grad"));
+        QCOMPARE_EQ(n, JKQTPCSSParser::NumberWithUnit(100.08, "grad"));
+    }
+
+    inline void test_JKQTPCSSParser_readColor() {
+        QColor n;
+
+        QVERIFY_THROWS_NO_EXCEPTION(n=JKQTPCSSParser::readColor("black"));
+        QCOMPARE_EQ(n, QColor(Qt::black));
+
+        QVERIFY_THROWS_NO_EXCEPTION(n=JKQTPCSSParser::readColor("red"));
+        QCOMPARE_EQ(n, QColor(Qt::red));
+
+        QVERIFY_THROWS_NO_EXCEPTION(n=JKQTPCSSParser::readColor("salmon"));
+        QCOMPARE_EQ(n, QColor("salmon"));
+
+        QVERIFY_THROWS_NO_EXCEPTION(n=JKQTPCSSParser::readColor("transparent"));
+        QCOMPARE_EQ(n.alpha(), 0);
+
+        QVERIFY_THROWS_NO_EXCEPTION(n=JKQTPCSSParser::readColor("window"));
+        QCOMPARE_EQ(n, QGuiApplication::palette().color(QPalette::Window));
+
+        QVERIFY_THROWS_NO_EXCEPTION(n=JKQTPCSSParser::readColor("#F0F"));
+        QCOMPARE_EQ(n, QColor::fromRgb(255,0,255));
+
+        QVERIFY_THROWS_NO_EXCEPTION(n=JKQTPCSSParser::readColor("#FF00FF"));
+        QCOMPARE_EQ(n, QColor::fromRgb(255,0,255));
+
+        QVERIFY_THROWS_NO_EXCEPTION(n=JKQTPCSSParser::readColor("#F0F1"));
+        QCOMPARE_EQ(n, QColor::fromRgb(0xFF,0,0xFF,0x11));
+
+        QVERIFY_THROWS_NO_EXCEPTION(n=JKQTPCSSParser::readColor("#FF00FF11"));
+        QCOMPARE_EQ(n, QColor::fromRgb(255,0,255,17));
+
+        QVERIFY_THROWS_NO_EXCEPTION(n=JKQTPCSSParser::readColor("rgb(50,100,200)"));
+        QCOMPARE_EQ(n, QColor::fromRgb(50,100,200));
+
+        QVERIFY_THROWS_NO_EXCEPTION(n=JKQTPCSSParser::readColor("rgb(100%,50,50%)"));
+        QCOMPARE(n, QColor::fromRgbF(1,50.0/255.0,0.5));
+
+        QVERIFY_THROWS_NO_EXCEPTION(n=JKQTPCSSParser::readColor("rgb(100% 0 50% / 10%)"));
+        QCOMPARE_EQ(n, QColor::fromRgbF(1,0,0.5, 0.1));
+
+        QVERIFY_THROWS_NO_EXCEPTION(n=JKQTPCSSParser::readColor("rgb(0,0,0)"));
+        QCOMPARE_EQ(n, QColor::fromRgb(0,0,0));
+
+        QVERIFY_THROWS_NO_EXCEPTION(n=JKQTPCSSParser::readColor("hsv(180deg 127 127)"));
+        QCOMPARE_EQ(n, QColor::fromHsv(180,127,127));
+
+        QVERIFY_THROWS_NO_EXCEPTION(n=JKQTPCSSParser::readColor("hsv(0.5turn 127 127)"));
+        QCOMPARE_EQ(n, QColor::fromHsv(180,127,127));
+
+        QVERIFY_THROWS_NO_EXCEPTION(n=JKQTPCSSParser::readColor("hsv(200grad 127 127)"));
+        QCOMPARE_EQ(n, QColor::fromHsv(180,127,127));
+
+        QVERIFY_THROWS_NO_EXCEPTION(n=JKQTPCSSParser::readColor("hsv(180 127 127)"));
+        QCOMPARE_EQ(n, QColor::fromHsv(180,127,127));
+
+    }
+
+    inline void test_JKQTPCSSParser_readGradient() {
+        QGradient n, g;
+        QLinearGradient lg;
+
+        QVERIFY_THROWS_EXCEPTION(std::exception, n=JKQTPCSSParser::readGradient("wa__flame"));
+
+        QVERIFY_THROWS_NO_EXCEPTION(n=JKQTPCSSParser::readGradient("warmflame"));
+        g = QGradient(QGradient::WarmFlame);
+        g.setCoordinateMode(QGradient::ObjectBoundingMode);
+        QCOMPARE_EQ(n, g);
+
+
+        QVERIFY_THROWS_NO_EXCEPTION(n=JKQTPCSSParser::readGradient("linear-gradient(to left, red, blue)"));
+        lg = QLinearGradient(1,0.5,0,0.5);
+        lg.setCoordinateMode(QGradient::ObjectBoundingMode);
+        lg.setStops({QGradientStop(0, QColor("red")), QGradientStop(1, QColor("blue"))});
+        QCOMPARE_EQ(n, lg);
+
+        QVERIFY_THROWS_NO_EXCEPTION(n=JKQTPCSSParser::readGradient("linear-gradient(to right, red, green 20%, blue)"));
+        lg = QLinearGradient(0,0.5,1,0.5);
+        lg.setCoordinateMode(QGradient::ObjectBoundingMode);
+        lg.setStops({QGradientStop(0, QColor("red")), QGradientStop(0.2, QColor("green")), QGradientStop(1, QColor("blue"))});
+        QCOMPARE_EQ(n, lg);
+
+        QVERIFY_THROWS_NO_EXCEPTION(n=JKQTPCSSParser::readGradient("linear-gradient(to top, red, blue)"));
+        lg = QLinearGradient(0.5,1,0.5,0);
+        lg.setCoordinateMode(QGradient::ObjectBoundingMode);
+        lg.setStops({QGradientStop(0, QColor("red")), QGradientStop(1, QColor("blue"))});
+        QCOMPARE_EQ(n, lg);
+
+        QVERIFY_THROWS_NO_EXCEPTION(n=JKQTPCSSParser::readGradient("linear-gradient(to bottom, red, blue)"));
+        lg = QLinearGradient(0.5,0,0.5,1);
+        lg.setCoordinateMode(QGradient::ObjectBoundingMode);
+        lg.setStops({QGradientStop(0, QColor("red")), QGradientStop(1, QColor("blue"))});
+        QCOMPARE_EQ(n, lg);
+
+        QVERIFY_THROWS_NO_EXCEPTION(n=JKQTPCSSParser::readGradient("linear-gradient(to bottom, rgb(255,0,0), rgb(0,0,255))"));
+        lg = QLinearGradient(0.5,0,0.5,1);
+        lg.setCoordinateMode(QGradient::ObjectBoundingMode);
+        lg.setStops({QGradientStop(0, QColor("red")), QGradientStop(1, QColor("blue"))});
+        QCOMPARE_EQ(n, lg);
+
+        QVERIFY_THROWS_NO_EXCEPTION(n=JKQTPCSSParser::readGradient("linear-gradient(to bottom, rgb(100%,0,0/90%), rgb(0,0,100%/10%))"));
+        lg = QLinearGradient(0.5,0,0.5,1);
+        lg.setCoordinateMode(QGradient::ObjectBoundingMode);
+        lg.setStops({QGradientStop(0, QColor::fromRgbF(1,0,0,0.9)), QGradientStop(1, QColor::fromRgbF(0,0,1,0.1))});
+        QCOMPARE_EQ(n, lg);
+
+
+    }
+
+    inline void test_JKQTPCSSParser_jkqtp_String2QBrushStyleExt() {
+        Qt::BrushStyle bs;
+        QGradient n, g;
+        QLinearGradient lg;
+        //QPixmap pix;
+        QColor col;
+
+
+        QVERIFY_THROWS_NO_EXCEPTION(bs=jkqtp_String2QBrushStyleExt("warmflame", &col, &n, nullptr));
+        g = QGradient(QGradient::WarmFlame);
+        g.setCoordinateMode(QGradient::ObjectBoundingMode);
+        QCOMPARE_EQ(n, g);
+        QCOMPARE_EQ(bs, Qt::LinearGradientPattern);
+
+        QVERIFY_THROWS_NO_EXCEPTION(bs=jkqtp_String2QBrushStyleExt("d1", &col, &n, nullptr));
+        QCOMPARE_EQ(bs, Qt::Dense1Pattern);
+
+
+        QVERIFY_THROWS_NO_EXCEPTION(bs=jkqtp_String2QBrushStyleExt("linear-gradient(to left, red, blue)", &col, &n, nullptr));
+        lg = QLinearGradient(1,0.5,0,0.5);
+        lg.setCoordinateMode(QGradient::ObjectBoundingMode);
+        lg.setStops({QGradientStop(0, QColor("red")), QGradientStop(1, QColor("blue"))});
+        QCOMPARE_EQ(n, lg);
+        QCOMPARE_EQ(bs, Qt::LinearGradientPattern);
+
+    }
+
+    inline void test_JKQTPCSSParser_jkqtp_String2QColor() {
+        QColor n;
+
+        QVERIFY_THROWS_NO_EXCEPTION(n=jkqtp_String2QColor("black"));
+        QCOMPARE_EQ(n, QColor(Qt::black));
+
+        QVERIFY_THROWS_NO_EXCEPTION(n=jkqtp_String2QColor("red"));
+        QCOMPARE_EQ(n, QColor(Qt::red));
+
+        QVERIFY_THROWS_NO_EXCEPTION(n=jkqtp_String2QColor("salmon"));
+        QCOMPARE_EQ(n, QColor("salmon"));
+
+        QVERIFY_THROWS_NO_EXCEPTION(n=jkqtp_String2QColor("transparent"));
+        QCOMPARE_EQ(n.alpha(), 0);
+
+        QVERIFY_THROWS_NO_EXCEPTION(n=jkqtp_String2QColor("window"));
+        QCOMPARE_EQ(n, QGuiApplication::palette().color(QPalette::Window));
+
+        QVERIFY_THROWS_NO_EXCEPTION(n=jkqtp_String2QColor("#F0F"));
+        QCOMPARE_EQ(n, QColor::fromRgb(255,0,255));
+
+        QVERIFY_THROWS_NO_EXCEPTION(n=jkqtp_String2QColor("#FF00FF"));
+        QCOMPARE_EQ(n, QColor::fromRgb(255,0,255));
+
+        QVERIFY_THROWS_NO_EXCEPTION(n=jkqtp_String2QColor("#F0F1"));
+        QCOMPARE_EQ(n, QColor::fromRgb(0xFF,0,0xFF,0x11));
+
+        QVERIFY_THROWS_NO_EXCEPTION(n=jkqtp_String2QColor("#FF00FF11"));
+        QCOMPARE_EQ(n, QColor::fromRgb(255,0,255,17));
+
+        QVERIFY_THROWS_NO_EXCEPTION(n=jkqtp_String2QColor("rgb(50,100,200)"));
+        QCOMPARE_EQ(n, QColor::fromRgb(50,100,200));
+
+        QVERIFY_THROWS_NO_EXCEPTION(n=jkqtp_String2QColor("grey50"));
+        QCOMPARE_EQ(n, QColor::fromRgbF(0.5,0.5,0.5));
+
+        QVERIFY_THROWS_NO_EXCEPTION(n=jkqtp_String2QColor("grey52"));
+        QCOMPARE_EQ(n, QColor::fromRgbF(0.52,0.52,0.52));
+
+        QVERIFY_THROWS_NO_EXCEPTION(n=jkqtp_String2QColor("grey52,20%"));
+        QCOMPARE_EQ(n, QColor::fromRgbF(0.52,0.52,0.52,0.8));
+
+        QVERIFY_THROWS_NO_EXCEPTION(n=jkqtp_String2QColor("grey52,a20%"));
+        QCOMPARE_EQ(n, QColor::fromRgbF(0.52,0.52,0.52,0.2));
+
+        QVERIFY_THROWS_NO_EXCEPTION(n=jkqtp_String2QColor("grey52,a240"));
+        QCOMPARE_EQ(n, QColor::fromRgbF(0.52,0.52,0.52,240.0/255.0));
+    }
+
+};
+
+
+QTEST_APPLESS_MAIN(testJKQTCommmon)
+
+#include "jkqtcommon_test.moc"