diff --git a/ui/minibar.cpp b/ui/minibar.cpp
index f831176bb..5bb0ac50a 100644
--- a/ui/minibar.cpp
+++ b/ui/minibar.cpp
@@ -412,7 +412,7 @@ void ProgressWidget::paintEvent( QPaintEvent * e )
         p.fillRect( fRect, pal.color( QPalette::Active, QPalette::Highlight ) );
     if ( l && l != w  )
     {
-        p.setPen( pal.color( QPalette::Active, QPalette::Highlight ).dark( 120 ) );
+        p.setPen( pal.color( QPalette::Active, QPalette::Highlight ).darker( 120 ) );
         int delta = QApplication::isRightToLeft() ? w - l : l;
         p.drawLine( delta, 0, delta, h );
     }
@@ -540,7 +540,7 @@ void PagesEdit::updatePalette()
     if ( hasFocus() )
         pal.setColor( QPalette::Active, QPalette::Base, QApplication::palette().color( QPalette::Active, QPalette::Base ) );
     else
-        pal.setColor( QPalette::Base, QApplication::palette().color( QPalette::Base ).dark( 102 ) );
+        pal.setColor( QPalette::Base, QApplication::palette().color( QPalette::Base ).darker( 102 ) );
 
     setPalette( pal );
 }
diff --git a/ui/pageview.cpp b/ui/pageview.cpp
index 74f5099e0..18a2bf9ff 100644
--- a/ui/pageview.cpp
+++ b/ui/pageview.cpp
@@ -1740,7 +1740,7 @@ void PageView::paintEvent(QPaintEvent *pe)
                                     (blendRect.left() - contentsRect.left()) * devicePixelRatioF(), (blendRect.top() - contentsRect.top()) * devicePixelRatioF(),
                                     blendRect.width() * devicePixelRatioF(), blendRect.height() * devicePixelRatioF() );
 
-                        QColor blCol = selBlendColor.dark( 140 );
+                        QColor blCol = selBlendColor.darker( 140 );
                         blCol.setAlphaF( 0.2 );
                         p.fillRect( blendedPixmap.rect(), blCol );
                         p.end();
@@ -1772,7 +1772,7 @@ void PageView::paintEvent(QPaintEvent *pe)
                                         (blendRect.left() - contentsRect.left()) * devicePixelRatioF(), (blendRect.top() - contentsRect.top()) * devicePixelRatioF(),
                                         blendRect.width() * devicePixelRatioF(), blendRect.height() * devicePixelRatioF() );
 
-                            QColor blCol = d->mouseSelectionColor.dark( 140 );
+                            QColor blCol = d->mouseSelectionColor.darker( 140 );
                             blCol.setAlphaF( 0.2 );
                             p.fillRect( blendedPixmap.rect(), blCol );
                             p.end();
@@ -1810,7 +1810,7 @@ void PageView::paintEvent(QPaintEvent *pe)
                 if ( !selectionRect.isNull() && selectionRect.intersects( contentsRect ) &&
                     !selectionRectInternal.contains( contentsRect ) )
                 {
-                    screenPainter.setPen( palette().color( QPalette::Active, QPalette::Highlight ).dark(110) );
+                    screenPainter.setPen( palette().color( QPalette::Active, QPalette::Highlight ).darker(110) );
                     screenPainter.drawRect( selectionRect );
                 }
                 // 2b) Layer 1b: paint opaque selection (table)
@@ -1822,7 +1822,7 @@ void PageView::paintEvent(QPaintEvent *pe)
                     if ( !selectionPartRect.isNull() && selectionPartRect.intersects( contentsRect ) &&
                         !selectionPartRectInternal.contains( contentsRect ) )
                     {
-                        screenPainter.setPen( palette().color( QPalette::Active, QPalette::Highlight ).dark(110) );
+                        screenPainter.setPen( palette().color( QPalette::Active, QPalette::Highlight ).darker(110) );
                         screenPainter.drawRect( selectionPartRect );
                     }
                 }
@@ -1846,7 +1846,7 @@ void PageView::paintEvent(QPaintEvent *pe)
 void PageView::drawTableDividers(QPainter * screenPainter)
 {
         if (!d->tableSelectionParts.isEmpty()) {
-            screenPainter->setPen( d->mouseSelectionColor.dark() );
+            screenPainter->setPen( d->mouseSelectionColor.darker() );
             if (d->tableDividersGuessed) {
                 QPen p = screenPainter->pen();
                 p.setStyle( Qt::DashLine );
@@ -2208,7 +2208,7 @@ void PageView::mouseMoveEvent( QMouseEvent * e )
                     d->aPrevAction = d->aMouseNormal;
                     d->aMouseSelect->trigger();
                     QPoint newPos = eventPos + QPoint( deltaX, deltaY );
-                    selectionStart( newPos, palette().color( QPalette::Active, QPalette::Highlight ).light( 120 ), false );
+                    selectionStart( newPos, palette().color( QPalette::Active, QPalette::Highlight ).lighter( 120 ), false );
                     updateSelection( eventPos );
                     break;
                 }
@@ -2382,7 +2382,7 @@ void PageView::mousePressEvent( QMouseEvent * e )
         case Okular::Settings::EnumMouseMode::TrimSelect:
              if ( leftButton )
              {
-                selectionStart( eventPos, palette().color( QPalette::Active, QPalette::Highlight ).light( 120 ), false );
+                selectionStart( eventPos, palette().color( QPalette::Active, QPalette::Highlight ).lighter( 120 ), false );
              }
             break;
         case Okular::Settings::EnumMouseMode::TableSelect:
@@ -2390,7 +2390,7 @@ void PageView::mousePressEvent( QMouseEvent * e )
              {
                 if (d->tableSelectionParts.isEmpty())
                 {
-                    selectionStart( eventPos, palette().color( QPalette::Active, QPalette::Highlight ).light( 120 ), false );
+                    selectionStart( eventPos, palette().color( QPalette::Active, QPalette::Highlight ).lighter( 120 ), false );
                 } else {
                     QRect updatedRect;
                     foreach (const TableSelectionPart &tsp, d->tableSelectionParts) {
diff --git a/ui/pageviewannotator.cpp b/ui/pageviewannotator.cpp
index 6c957e70a..4faa16649 100644
--- a/ui/pageviewannotator.cpp
+++ b/ui/pageviewannotator.cpp
@@ -407,7 +407,7 @@ class PolyLineEngine : public AnnotatorEngine
                 const Okular::NormalizedPoint second = points[1];
                 // draw a semitransparent block around the 2 points
                 painter->setPen( m_engineColor );
-                painter->setBrush( QBrush( m_engineColor.light(), Qt::Dense4Pattern ) );
+                painter->setBrush( QBrush( m_engineColor.lighter(), Qt::Dense4Pattern ) );
                 painter->drawRect( (int)(first.x * (double)xScale), (int)(first.y * (double)yScale),
                                    (int)((second.x - first.x) * (double)xScale), (int)((second.y - first.y) * (double)yScale) );
             }
diff --git a/ui/pageviewutils.cpp b/ui/pageviewutils.cpp
index dc487ed62..d88a37248 100644
--- a/ui/pageviewutils.cpp
+++ b/ui/pageviewutils.cpp
@@ -412,7 +412,7 @@ void PageViewMessage::paintEvent( QPaintEvent * /* e */ )
     const int textDrawingFlags = Qt::AlignLeft | Qt::AlignTop | Qt::TextWordWrap;
 
     // draw shadow and text
-    painter.setPen( palette().color( QPalette::Window ).dark( 115 ) );
+    painter.setPen( palette().color( QPalette::Window ).darker( 115 ) );
     painter.drawText( xStartPoint + shadowOffset, yStartPoint + shadowOffset, textRect.width(), textRect.height(), textDrawingFlags, m_message );
     if ( !m_details.isEmpty() )
         painter.drawText( xStartPoint + shadowOffset, yStartPoint + textRect.height() + m_lineSpacing + shadowOffset, textRect.width(), detailsRect.height(), textDrawingFlags, m_details );
diff --git a/ui/sidebar.cpp b/ui/sidebar.cpp
index 0e1d34e5c..128d889b1 100644
--- a/ui/sidebar.cpp
+++ b/ui/sidebar.cpp
@@ -150,7 +150,7 @@ void SidebarDelegate::paint( QPainter *painter, const QStyleOptionViewItem &opti
     }
     else if ( option.state & QStyle::State_MouseOver )
     {
-        backBrush = m_selectionBackground->brush(option.palette).color().light( 115 );
+        backBrush = m_selectionBackground->brush(option.palette).color().lighter( 115 );
         foreColor = m_windowForeground->brush(option.palette).color();
         hover = true;
     }
@@ -167,7 +167,7 @@ void SidebarDelegate::paint( QPainter *painter, const QStyleOptionViewItem &opti
     {
         Qt::BrushStyle bs = opt.backgroundBrush.style();
         if ( bs > Qt::NoBrush && bs < Qt::TexturePattern )
-            opt.backgroundBrush = opt.backgroundBrush.color().light( 115 );
+            opt.backgroundBrush = opt.backgroundBrush.color().lighter( 115 );
         else
             opt.backgroundBrush = backBrush;
     }