darkGrey.qss

/* === Shared === */
QStackedWidget, QLabel, QPushButton, QRadioButton, QCheckBox, 
QGroupBox, QStatusBar, QToolButton, QComboBox, QDialog {
    background-color: #222222;
    color: #BBBBBB;
    font-family: "Segoe UI";
}
/* === QWidget === */
QWidget {
    background: #111111;
    color: #BBBBBB;
    font-family: "Segoe UI";
}

/* === QToolTip === */
QToolTip {
    background-color: #000000;
    border: 2px solid #333333;
    color: yellow;
}

/* === QPushButton === */
QPushButton {
    border: 1px solid #333333;
    padding: 4px;
    min-width: 65px;
    min-height: 12px;
}

QPushButton:hover {
    background-color: #333333;
    border-color: #444444;
}

QPushButton:pressed {
    background-color: #111111;
    border-color: #333333;
    color: #E7D3DC;
}
QPushButton:checked {
    background-color: #333333;
    border-color: #444444;
    color: #E7D3DC;
}

QPushButton:disabled {
    color: #333333;
}

/* === Checkable items === */
QCheckBox::indicator, QRadioButton::indicator, QTreeView::indicator {
    width: 16px;
    height: 16px;
    background-color: #111111;
    border: 1px solid #333333;
}

QRadioButton::indicator {
    border-radius: 8px;
}

QCheckBox::indicator::checked, QRadioButton::indicator::checked, QTreeView::indicator::checked {
    background-color: qradialgradient(cx:0.5, cy:0.5, fx:0.25, fy:0.15, radius:0.3, stop:0 #BBBBBB, stop:1 #111111);
}

QCheckBox::indicator:disabled, QRadioButton::indicator:disabled, QTreeView::indicator:disabled {
    background-color: #444444;
}

QCheckBox::indicator::checked:disabled, QRadioButton::indicator::checked:disabled, QTreeView::indicator::checked:disabled {
    background-color: qradialgradient(cx:0.5, cy:0.5, fx:0.25, fy:0.15, radius:0.3, stop:0 #BBBBBB, stop:1 #444444);
}

/* === QComboBox === */
QComboBox {
    background-color: black;
    border: 1px solid #333333;
    color: white;
    padding:1px 2em 1px 3px;
}

QComboBox::drop-down {
    subcontrol-origin: padding;
    subcontrol-position: top right;
    border-left: 1px solid #333333;
}

QComboBox::down-arrow {
    border: 2px solid #333333;
    width: 6px;
    height: 6px;
    background: #5f5f5f;
}

/* === QGroupBox === */
QGroupBox {
    border: 2px solid #333333;
    margin-top: 2ex;
}

QGroupBox::title {
    color: yellow;
    subcontrol-origin: margin;
    subcontrol-position: top left;
    margin-left: 5px;
}

/* === QTabWidget === */
QTabWidget::pane {
    background: #222222;
    border: 2px solid #333333;
}

/* === QTabBar === */
QTabBar::tab {
    background: transparent;
    border: 1px solid #333333;
    border-bottom: none;
    color: #BBBBBB;
    padding-left: 5px;
    padding-right: 10px;
    padding-top: 3px;
    padding-bottom: 3px;
}

QTabBar::tab:hover {
    background-color: #333333;
    border: 1px solid #444444;
    border-bottom: none;
}

QTabBar::tab:selected {
    background-color: #111111;
    border: 1px solid #333333;
    border-top: 1px solid yellow;
    border-bottom: none;
    color: yellow
}

/* === QToolBar === */
QToolBar {
    background-color: #222222;
    border: none;
    padding: 1px;
}

QToolBar:handle {
    background: #222222;
    border-left: 1px dotted yellow;
    color: #BBBBBB;
}

QToolBar::separator {
    width: 6px;
    background-color: #222222;
}

/* === QToolButton === */
QToolButton {
    border: 1px solid #333333;
    margin: 1px;
    border-radius:3px;
}

QToolButton:hover {
    background-color: #333333;
    border: 2px solid #444444;
}

QToolButton[popupMode="1"] { /* only for MenuButtonPopup */
    padding-right: 20px; /* make way for the popup button */
}

QToolButton::menu-button {
    border-left: 1px solid #333333;
    background: transparent;
    width: 16px;
}

QToolButton::menu-button:hover {
    border-left: 1px solid #444444;
    background: transparent;
    width: 16px;
}

QToolButton:checked, QToolButton:pressed {
    background-color: #0E6894;
    /* color: #black;*/
}

/* === QMenu === */
QMenu {
    background-color: black;
    border: 1px solid gray;
    color: white;
    padding: 1px;
}

QMenu::item {
    padding: 2px 25px 2px 20px;
    border: 1px solid transparent;
}

QMenu::item:disabled {
    color: #666666;
}

QMenu::item:selected {
    border-color: gray;
    background: #222222;
}

QMenu::icon:checked {

}

QMenu::separator {
    height: 1px;
    background: #222222;
    margin-left: 10px;
    margin-right: 10px;
    margin-top: 1px;
    margin-bottom: 1px;
}

QMenu::indicator {
    width: 13px;
    height: 13px;
}

/* === QMenuBar === */
QMenuBar {
    background-color: black;
    color: white;
}

QMenuBar::item {
    background: transparent;
}

QMenuBar::item:disabled {
    color: gray;
}

QMenuBar::item:selected {
    background: #222222;
}

QMenuBar::item:pressed {
    background: #444444;
}
 
/* === QScrollBar:vertical === */
QScrollBar:vertical {
    background: #222222;
    width: 12px;
    margin: 4px 0 4px 0;
}

QScrollBar::handle:vertical {
    background: #666666;
    min-height: 12px;
    border-radius:3px;
}

QScrollBar::add-line:vertical {
    background: #444444;
    height: 12px;
    subcontrol-position: bottom;
    subcontrol-origin: margin;
}

QScrollBar::sub-line:vertical {
    background: #444444;
    height: 12px;
    subcontrol-position: top;
    subcontrol-origin: margin;
}

QScrollBar::add-page:vertical, QScrollBar::sub-page:vertical {
    background: none;
}

QScrollBar:up-arrow:vertical, QScrollBar:down-arrow:vertical {
    border: 1px solid #333333;
    width: 3px;
    height: 3px;
    background: #5f5f5f;
}

/* === QScrollBar:horizontal === */
QScrollBar:horizontal {
    background: #222222;
    height: 12px;
    margin: 0 4px 0 4px;
}

QScrollBar::handle:horizontal {
    background: #666666;
    min-width: 12px;
    border-radius:3px;
}

QScrollBar::add-line:horizontal {
    background: #444444;
    width: 12px;
    subcontrol-position: right;
    subcontrol-origin: margin;
}

QScrollBar::sub-line:horizontal {
    background: #444444;
    width: 12px;
    subcontrol-position: left;
    subcontrol-origin: margin;
}

QScrollBar::add-page:horizontal, QScrollBar::sub-page:horizontal {
    background: none;
}

QScrollBar:left-arrow:horizontal, QScrollBar:right-arrow:horizontal {
    border: 1px solid #333333;
    width: 3px;
    height: 3px;
    background: #5f5f5f;
}

/* =================== */
QLineEdit, QListView, QTreeView, QTableView, QAbstractSpinBox {
    background-color: #2D2D2D;
    color: #BBBBBB;
    border: 1px solid #333333;
}

QAbstractScrollArea, QLineEdit, QTextEdit, QAbstractSpinBox, QComboBox {
    border-color: #333333;
    border: 1px solid #333333;

}

/* === QHeaderView === */
QHeaderView::section {
    background: #222222;
    border: 0;
    color: #BBBBBB;
    padding: 3px 0 3px 4px;
}

/* === QListView === */
QListView::item:hover {
    background: #333333;
}

QListView::item:selected {
    background: #111111;
    color: yellow;
}

/* === QTableView === */
QTableView::item:hover {
    background: #333333;
}

QTableView::item:hover {
    background: #111111;
    color: yellow;
}

/* === QTreeView === */

QTreeView{
    background: #111111;
}