Qt dark theme

{
	connect(ui.actionDarkOrangeTheme, &QAction::triggered, this, &MainWindow::activateDarkOrangeTheme);
	connect(ui.actionDarkFusionTheme, &QAction::triggered, this, &MainWindow::activateDarkFusionTheme);
}

#include <QStyleFactory>

#define raw(...) #__VA_ARGS__

#pragma region qss

static const char* s = raw(
    QToolTip
    {
border:
	1px solid black;
	background - color : #ffa02f;
padding:
	1px;
	border - radius : 3px;
opacity:
	100;
	} QWidget
    {
color:
	#b1b1b1;
	background - color : #323232;
	} QWidget
    : item
    : hover
    {
	    background - color
	        : QLinearGradient(x1 : 0, y1 : 0, x2 : 0, y2 : 1, stop : 0 #ffa02f, stop : 1 #ca0619);
    color:
	    # 000000;
	} QWidget
    : item
    : selected
    {
	    background - color
	        : QLinearGradient(x1 : 0, y1 : 0, x2 : 0, y2 : 1, stop : 0 #ffa02f, stop : 1 #d7801a);
	} QMenuBar::item
    {
background:
	transparent;
	} QMenuBar::item
    : selected
    {
background:
	transparent;
border:
	1px solid #ffaa00;
	} QMenuBar::item
    : pressed
    {
background:
	# 444;
border:
	1px solid #000;
	background - color
	    : QLinearGradient(x1 : 0, y1 : 0, x2 : 0, y2 : 1, stop : 1 #212121, stop : 0.4 #343434 /*,
	                                                                           stop:0.2 #343434,
	                                                                           stop:0.1 #ffaa00*/
	                      );
	margin - bottom : -1px;
	padding - bottom : 1px;
	} QMenu
    {
border:
	1px solid #000;
	} QMenu::item
    {
padding:
	2px 20px 2px 20px;
	} QMenu::item
    : selected
    {
color:
	# 000000;
	} QWidget
    : disabled
    {
color:
	# 404040;
	background - color : #323232;
	} QAbstractItemView
    {
	    background - color : QLinearGradient(x1 : 0, y1 : 0, x2 : 0, y2 : 1, stop : 0 #4d4d4d,
	                                         stop : 0.1 #646464, stop : 1 #5d5d5d);
	} QWidget
    : focus
    {
	    /*border: 2px solid QLinearGradient( x1: 0, y1: 0, x2: 0, y2: 1, stop: 0 #ffa02f, stop: 1
           #d7801a);*/
	} QLineEdit
    {
	    background - color : QLinearGradient(x1 : 0, y1 : 0, x2 : 0, y2 : 1, stop : 0 #4d4d4d,
	                                         stop : 0 #646464, stop : 1 #5d5d5d);
    padding:
	    1px;
	    border - style : solid;
    border:
	    1px solid #1e1e1e;
	    border - radius : 5;
	} QPushButton
    {
color:
	#b1b1b1;
	background - color
	    : QLinearGradient(x1 : 0, y1 : 0, x2 : 0, y2 : 1, stop : 0 #565656, stop : 0.1 #525252,
	                      stop : 0.5 #4e4e4e, stop : 0.9 #4a4a4a, stop : 1 #464646);
	border - width : 1px;
	border - color : #1e1e1e;
	border - style : solid;
	border - radius : 6;
padding:
	3px;
	font - size : 12px;
	padding - left : 5px;
	padding - right : 5px;
	} QPushButton
    : pressed
    {
	    background - color
	        : QLinearGradient(x1 : 0, y1 : 0, x2 : 0, y2 : 1, stop : 0 #2d2d2d, stop : 0.1 #2b2b2b,
	                          stop : 0.5 #292929, stop : 0.9 #282828, stop : 1 #252525);
	} QComboBox
    {
	    selection - background - color : #ffaa00;
	    background - color
	        : QLinearGradient(x1 : 0, y1 : 0, x2 : 0, y2 : 1, stop : 0 #565656, stop : 0.1 #525252,
	                          stop : 0.5 #4e4e4e, stop : 0.9 #4a4a4a, stop : 1 #464646);
	    border - style : solid;
    border:
	    1px solid #1e1e1e;
	    border - radius : 5;
	} QComboBox
    : hover, QPushButton
    : hover
    {
border:
	2px solid QLinearGradient(x1 : 0, y1 : 0, x2 : 0, y2 : 1, stop : 0 #ffa02f, stop : 1 #d7801a);
	} QComboBox
    : on
          {
	          padding - top : 3px;
	          padding - left : 4px;
	          background - color : QLinearGradient(x1 : 0, y1 : 0, x2 : 0, y2 : 1, stop : 0 #2d2d2d,
	                                               stop : 0.1 #2b2b2b, stop : 0.5 #292929,
	                                               stop : 0.9 #282828, stop : 1 #252525);
	          selection - background - color : #ffaa00;
	      } QComboBox QAbstractItemView
          {
border:
	2px solid darkgray;
	selection - background - color
	    : QLinearGradient(x1 : 0, y1 : 0, x2 : 0, y2 : 1, stop : 0 #ffa02f, stop : 1 #d7801a);
	      } QComboBox::drop -
          down
          {
	          subcontrol - origin : padding;
	          subcontrol - position : top right;
          width:
	          15px;

	          border - left - width : 0px;
	          border - left - color : darkgray;
	          border - left - style : solid;       /* just a single line */
	          border - top - right - radius : 3px; /* same radius as the QComboBox */
	          border - bottom - right - radius : 3px;
	      } QComboBox::down -
          arrow
          {
image:
	url( : / down_arrow.png);
	      } QGroupBox
    : focus
    {
border:
	2px solid QLinearGradient(x1 : 0, y1 : 0, x2 : 0, y2 : 1, stop : 0 #ffa02f, stop : 1 #d7801a);
	} QTextEdit
    : focus
    {
border:
	2px solid QLinearGradient(x1 : 0, y1 : 0, x2 : 0, y2 : 1, stop : 0 #ffa02f, stop : 1 #d7801a);
	} QScrollBar
    : horizontal
    {
border:
	1px solid #222222;
background:
	QLinearGradient(x1 : 0, y1 : 0, x2 : 0, y2 : 1, stop : 0.0 #121212, stop : 0.2 #282828,
	                stop : 1 #484848);
height:
	7px;
margin:
	0px 16px 0 16px;
	} QScrollBar::handle
    : horizontal
          {
background:
	QLinearGradient(x1 : 0, y1 : 0, x2 : 1, y2 : 0, stop : 0 #ffa02f, stop : 0.5 #d7801a,
	                stop : 1 #ffa02f);
	min - height : 20px;
	border - radius : 2px;
	      } QScrollBar::add -
          line
    : horizontal
          {
border:
	1px solid #1b1b19;
	border - radius : 2px;
background:
	QLinearGradient(x1 : 0, y1 : 0, x2 : 1, y2 : 0, stop : 0 #ffa02f, stop : 1 #d7801a);
width:
	14px;
	subcontrol - position : right;
	subcontrol - origin : margin;
	      } QScrollBar::sub -
          line
    : horizontal
          {
border:
	1px solid #1b1b19;
	border - radius : 2px;
background:
	QLinearGradient(x1 : 0, y1 : 0, x2 : 1, y2 : 0, stop : 0 #ffa02f, stop : 1 #d7801a);
width:
	14px;
	subcontrol - position : left;
	subcontrol - origin : margin;
	      } QScrollBar::right -
          arrow
    : horizontal, QScrollBar::left - arrow
    : horizontal
          {
border:
	1px solid black;
width:
	1px;
height:
	1px;
background:
	white;
	      } QScrollBar::add -
          page
    : horizontal, QScrollBar::sub - page
    : horizontal
    {
background:
	none;
	} QScrollBar
    : vertical
    {
background:
	QLinearGradient(x1 : 0, y1 : 0, x2 : 1, y2 : 0, stop : 0.0 #121212, stop : 0.2 #282828,
	                stop : 1 #484848);
width:
	7px;
margin:
	16px 0 16px 0;
border:
	1px solid #222222;
	} QScrollBar::handle
    : vertical
          {
background:
	QLinearGradient(x1 : 0, y1 : 0, x2 : 0, y2 : 1, stop : 0 #ffa02f, stop : 0.5 #d7801a,
	                stop : 1 #ffa02f);
	min - height : 20px;
	border - radius : 2px;
	      } QScrollBar::add -
          line
    : vertical
          {
border:
	1px solid #1b1b19;
	border - radius : 2px;
background:
	QLinearGradient(x1 : 0, y1 : 0, x2 : 0, y2 : 1, stop : 0 #ffa02f, stop : 1 #d7801a);
height:
	14px;
	subcontrol - position : bottom;
	subcontrol - origin : margin;
	      } QScrollBar::sub -
          line
    : vertical
          {
border:
	1px solid #1b1b19;
	border - radius : 2px;
background:
	QLinearGradient(x1 : 0, y1 : 0, x2 : 0, y2 : 1, stop : 0 #d7801a, stop : 1 #ffa02f);
height:
	14px;
	subcontrol - position : top;
	subcontrol - origin : margin;
	      } QScrollBar::up -
          arrow
    : vertical, QScrollBar::down - arrow
    : vertical
          {
border:
	1px solid black;
width:
	1px;
height:
	1px;
background:
	white;
	      } QScrollBar::add -
          page
    : vertical, QScrollBar::sub - page
    : vertical
    {
background:
	none;
	} QTextEdit
    { background - color : #242424; } QPlainTextEdit
    { background - color : #242424; } QHeaderView::section
    {
	    background - color
	        : QLinearGradient(x1 : 0, y1 : 0, x2 : 0, y2 : 1, stop : 0 #616161, stop : 0.5 #505050,
	                          stop : 0.6 #434343, stop : 1 #656565);
    color:
	    white;
	    padding - left : 4px;
    border:
	    1px solid #6c6c6c;
	} QCheckBox
    : disabled
          {
color:
	# 414141;
	      } QDockWidget::title
          {
	          text - align : center;
          spacing:
	          3px; /* spacing between items in the tool bar */
	          background - color : QLinearGradient(x1 : 0, y1 : 0, x2 : 0, y2 : 1, stop : 0 #323232,
	                                               stop : 0.5 #242424, stop : 1 #323232);
	      } QDockWidget::close -
          button,
      QDockWidget::float - button
          {
	          text - align : center;
          spacing:
	          1px; /* spacing between items in the tool bar */
	          background - color : QLinearGradient(x1 : 0, y1 : 0, x2 : 0, y2 : 1, stop : 0 #323232,
	                                               stop : 0.5 #242424, stop : 1 #323232);
	      } QDockWidget::close -
          button
    : hover, QDockWidget::float - button
    : hover
          {
background:
	# 242424;
	      } QDockWidget::close -
          button
    : pressed, QDockWidget::float - button
    : pressed
    {
padding:
	1px - 1px - 1px 1px;
	} QMainWindow::separator
    {
	    background - color
	        : QLinearGradient(x1 : 0, y1 : 0, x2 : 0, y2 : 1, stop : 0 #161616, stop : 0.5 #151515,
	                          stop : 0.6 #212121, stop : 1 #343434);
    color:
	    white;
	    padding - left : 4px;
    border:
	    1px solid #4c4c4c;
    spacing:
	    3px; /* spacing between items in the tool bar */
	} QMainWindow::separator
    : hover
    {

	    background - color : QLinearGradient(x1 : 0, y1 : 0, x2 : 0, y2 : 1, stop : 0 #d7801a,
	                                         stop : 0.5 #b56c17 stop : 1 #ffa02f);
    color:
	    white;
	    padding - left : 4px;
    border:
	    1px solid #6c6c6c;
    spacing:
	    3px; /* spacing between items in the tool bar */
	} QToolBar::handle
    {
spacing:
	3px; /* spacing between items in the tool bar */
background:
	url( : / images / handle.png);
	} QMenu::separator
    {
height:
	2px;
	background - color : QLinearGradient(x1 : 0, y1 : 0, x2 : 0, y2 : 1, stop : 0 #161616,
	                                     stop : 0.5 #151515, stop : 0.6 #212121, stop : 1 #343434);
color:
	white;
	padding - left : 4px;
	margin - left : 10px;
	margin - right : 5px;
	} QProgressBar
    {
border:
	2px solid grey;
	border - radius : 5px;
	text - align : center;
	} QProgressBar::chunk
    {
	    background - color : #d7801a;
    width:
	    2.15px;
    margin:
	    0.5px;
	} QTabBar::tab
    {
color:
	#b1b1b1;
border:
	1px solid #444;
	border - bottom - style : none;
	background - color : #323232;
	padding - left : 10px;
	padding - right : 10px;
	padding - top : 3px;
	padding - bottom : 2px;
	margin - right : -1px;
	} QTabWidget::pane
    {
border:
	1px solid #444;
top:
	1px;
	} QTabBar::tab
    : last
    {
	    margin - right : 0; /* the last selected tab has nothing to overlap with on the right */
	    border - top - right - radius : 3px;
	} QTabBar::tab
    : first
    : !selected
      {
	      margin - left : 0px; /* the last selected tab has nothing to overlap with on the right */

	      border - top - left - radius : 3px;
	  } QTabBar::tab
    : !selected
      {
color:
	#b1b1b1;
	border - bottom - style : solid;
	margin - top : 3px;
	background - color
	    : QLinearGradient(x1 : 0, y1 : 0, x2 : 0, y2 : 1, stop : 1 #212121, stop : .4 #343434);
	  } QTabBar::tab
    : selected
    {
	    border - top - left - radius : 3px;
	    border - top - right - radius : 3px;
	    margin - bottom : 0px;
	} QTabBar::tab
    : !selected
    : hover
    {
	    /*border-top: 2px solid #ffaa00;
	    padding-bottom: 3px;*/
	    border - top - left - radius : 3px;
	    border - top - right - radius : 3px;
	    background - color
	        : QLinearGradient(x1 : 0, y1 : 0, x2 : 0, y2 : 1, stop : 1 #212121, stop : 0.4 #343434,
	                          stop : 0.2 #343434, stop : 0.1 #ffaa00);
	} QRadioButton::indicator
    : checked, QRadioButton::indicator
    : unchecked
    {
color:
	#b1b1b1;
	background - color : #323232;
border:
	1px solid #b1b1b1;
	border - radius : 6px;
	} QRadioButton::indicator
    : checked
    {
	    background - color : qradialgradient(cx : 0.5, cy : 0.5, fx : 0.5, fy : 0.5, radius : 1.0,
	                                         stop : 0.25 #ffaa00, stop : 0.3 #323232);
	} QCheckBox::indicator
    {
color:
	#b1b1b1;
	background - color : #323232;
border:
	1px solid #b1b1b1;
width:
	9px;
height:
	9px;
	} QRadioButton::indicator
    { border - radius : 6px; } QRadioButton::indicator
    : hover, QCheckBox::indicator
    : hover
    {
border:
	1px solid #ffaa00;
	} QCheckBox::indicator
    : checked
    {
image:
	url( : / images / checkbox.png);
	} QCheckBox::indicator
    : disabled, QRadioButton::indicator
    : disabled
    {
border:
	1px solid #444;
	});
#pragma endregion

void MainWindow::activateDarkOrangeTheme()
{
	// http://tech-artists.org/forum/showthread.php?2359-Release-Qt-dark-orange-stylesheet

	qApp->setStyle(QStringLiteral("plastique"));
	qApp->setPalette(QPalette());
	qApp->setStyleSheet(QLatin1String(s));
}

void MainWindow::activateDarkFusionTheme()
{
	/*
	    Dark Qt 5 Fusion theme
	    http://contingencycoder.wordpress.com/2013/08/15/dark-fusion-theme-for-qt-5/
	*/
	// bright fusion looks worse than default
	qApp->setStyle(QStringLiteral("fusion"));

	QPalette palette;
	palette.setColor(QPalette::Window, QColor(53, 53, 53));
	palette.setColor(QPalette::WindowText, Qt::white);
	palette.setColor(QPalette::Base, QColor(25, 25, 25));
	palette.setColor(QPalette::AlternateBase, QColor(53, 53, 53));
	palette.setColor(QPalette::ToolTipBase, Qt::white);
	palette.setColor(QPalette::ToolTipText, Qt::white);
	palette.setColor(QPalette::Text, Qt::white);
	palette.setColor(QPalette::Button, QColor(53, 53, 53));
	palette.setColor(QPalette::ButtonText, Qt::white);
	palette.setColor(QPalette::BrightText, Qt::red);
	palette.setColor(QPalette::Link, QColor(42, 130, 218));

	palette.setColor(QPalette::Highlight, QColor(42, 130, 218));
	palette.setColor(QPalette::HighlightedText, Qt::black);

	// for the tool tips to blend them better with the rest of the theme
	qApp->setStyleSheet(
	    "QToolTip { color: #ffffff; background-color: #2a82da; border: 1px solid white; }");

	qApp->setPalette(palette);
}