Add option for using large color palette on right button click (#2171)

(cherry picked from commit 403a6474e7e8afeb7920fe39c8312481c21d0d1b)

Co-authored-by: Yuriy Puchkov <yuriy.puchkov@namecheap.com>

src/config/generalconf.cpp

@@ -53,6 +53,7 @@ GeneralConf::GeneralConf(QWidget* parent)
 #if !defined(Q_OS_WIN)
     initAutoCloseIdleDaemon();
 #endif
+    initPredefinedColorPaletteLarge();
 
     m_layout->addStretch();
 
@@ -369,6 +370,20 @@ void GeneralConf::initShowStartupLaunchMessage()
     });
 }
 
+void GeneralConf::initPredefinedColorPaletteLarge()
+{
+    m_predefinedColorPaletteLarge =
+      new QCheckBox(tr("Use large predefined color palette"), this);
+    m_predefinedColorPaletteLarge->setToolTip(
+      tr("Use large predefined color palette"));
+    m_scrollAreaLayout->addWidget(m_predefinedColorPaletteLarge);
+
+    connect(
+      m_predefinedColorPaletteLarge, &QCheckBox::clicked, [](bool checked) {
+          ConfigHandler().setPredefinedColorPaletteLarge(checked);
+      });
+}
+
 void GeneralConf::initCopyAndCloseAfterUpload()
 {
     m_copyAndCloseAfterUpload =