Plugins: A bit more Keys and Store

Change-Id: Iee55eeaa881dd9f2047fdbe95ad8d827f4ba34e0
Reviewed-by: Marcus Tillmanns <marcus.tillmanns@qt.io>

src/plugins/terminal/terminalsettings.cpp

@@ -67,7 +67,7 @@ void setupColor(TerminalSettings *settings,
                 const QString &label,
                 const QColor &defaultColor)
 {
-    color.setSettingsKey(label);
+    color.setSettingsKey(keyFromString(label));
     color.setDefaultValue(defaultColor);
     color.setToolTip(Tr::tr("The color used for %1.").arg(label));
     settings->registerAspect(&color);