KDE: Add sddm theme

kde/sddm/Sweet-Mars/DropdownMenuStyle.qml

@@ -0,0 +1,26 @@
+import QtQuick 2.2
+
+import org.kde.plasma.core 2.0 as PlasmaCore
+
+import QtQuick.Controls.Styles 1.4 as QQCS
+import QtQuick.Controls 1.3 as QQC
+
+QQCS.MenuStyle {
+    frame: Rectangle {
+        color: "#1E2326"
+        border.color: "#0C0E15"
+        border.width: 1
+    }
+    itemDelegate.label: QQC.Label {
+        height: contentHeight * 2
+        verticalAlignment: Text.AlignVCenter
+        color: config.highlight_color
+        font.pointSize: config.fontSize
+        font.family: config.font
+        text: styleData.text
+    }
+    itemDelegate.background: Rectangle {
+        visible: styleData.selected
+        color: config.selected_color
+    }
+}