Texture quality is actually working. (And also quite useful for high-dpi screens).

app/qml/TerminalContainer.qml

@@ -0,0 +1,55 @@
+import QtQuick 2.2
+
+Item{
+    Item{
+        id: scalableContent
+        width: parent.width * shadersettings.window_scaling
+        height: parent.height * shadersettings.window_scaling
+
+        Loader{
+            id: frame
+            anchors.fill: parent
+            z: 2.1
+            source: shadersettings.frame_source
+        }
+        PreprocessedTerminal{
+            id: terminal
+            anchors.fill: parent
+        }
+        ShaderTerminal{
+            id: shadercontainer
+            anchors.fill: parent
+            opacity: shadersettings.windowOpacity * 0.3 + 0.7
+            z: 1.9
+        }
+    }
+
+    // This is used to render the texture to a lower resolution then scale it up.
+    Loader{
+        id: scalableContentSource
+        active: shadersettings.window_scaling < 1
+        sourceComponent: ShaderEffectSource{
+            sourceItem: scalableContent
+            hideSource: true
+            smooth: true
+        }
+    }
+    Loader{
+        active: shadersettings.window_scaling < 1
+        anchors.fill: parent
+        sourceComponent: ShaderEffect{
+            property var source: scalableContentSource.item
+        }
+    }
+
+    // Terminal size overlay. Shown when terminal size changes.
+    Loader{
+        id: sizeoverlayloader
+        z: 3
+        anchors.centerIn: parent
+        active: shadersettings.show_terminal_size
+        sourceComponent: SizeOverlay{
+            terminalSize: terminal.terminalSize
+        }
+    }
+}