tabs now grey out when the window loses focus

src/widgets/notebookpage.cpp

@@ -4,6 +4,7 @@
 #include "widgets/notebook.hpp"
 #include "widgets/notebooktab.hpp"
 
+#include <QApplication>
 #include <QDebug>
 #include <QHBoxLayout>
 #include <QMimeData>
@@ -364,15 +365,17 @@ void NotebookPage::paintEvent(QPaintEvent *)
     if (this->ui.hbox.count() == 0) {
         painter.fillRect(rect(), this->colorScheme.ChatBackground);
 
-        painter.fillRect(0, 0, width(), 2, this->colorScheme.TabSelectedBackground);
-
         painter.setPen(this->colorScheme.Text);
         painter.drawText(rect(), "Add Chat", QTextOption(Qt::AlignCenter));
     } else {
         painter.fillRect(rect(), this->colorScheme.ChatSeperator);
-
-        painter.fillRect(0, 0, width(), 2, this->colorScheme.TabSelectedBackground);
     }
+
+    QColor accentColor = (QApplication::activeWindow() == this->window()
+                              ? this->colorScheme.TabSelectedBackground
+                              : this->colorScheme.TabSelectedUnfocusedBackground);
+
+    painter.fillRect(0, 0, width(), 2, accentColor);
 }
 
 void NotebookPage::showEvent(QShowEvent *event)

src/widgets/notebooktab.cpp

@@ -6,6 +6,7 @@
 
 #include <QDebug>
 #include <QPainter>
+#include <QApplication>
 
 namespace chatterino {
 namespace widgets {
@@ -154,8 +155,13 @@ void NotebookTab::paintEvent(QPaintEvent *)
     QColor fg = QColor(0, 0, 0);
 
     if (this->selected) {
-        painter.fillRect(rect(), this->colorScheme.TabSelectedBackground);
-        fg = this->colorScheme.TabSelectedText;
+        if (this->window() == QApplication::activeWindow()) {
+            painter.fillRect(rect(), this->colorScheme.TabSelectedBackground);
+            fg = this->colorScheme.TabSelectedText;
+        } else {
+            painter.fillRect(rect(), this->colorScheme.TabSelectedUnfocusedBackground);
+            fg = this->colorScheme.TabSelectedUnfocusedText;
+        }
     } else if (this->mouseOver) {
         painter.fillRect(rect(), this->colorScheme.TabHoverBackground);
         fg = this->colorScheme.TabHoverText;