Update registrar code

internal/style/styleconcept.tss

@@ -0,0 +1,21 @@
+$colorBlack    = #000000FF
+$borderOutline = $black / 1
+
+*.Slider {
+	Border:  $borderOutline, $borderColorFocused / 1
+	Color:   $colorGutter
+	Padding: 0 1 1 0
+}
+
+*.Slider[focused] {
+	Border:  $borderOutline
+	Padding: 0
+}
+
+*.Slider[horizontal] {
+	MinimumSize: 48 0
+}
+
+*.Slider[vertical] {
+	MinimumSize: 0 48
+}