[gnome-weather] Fix bug when chart's background color overwrites it's border color

[Michael Catanzaro <mcatanzaro src gnome org>]

commit 17a26d1998be711bb3df06ed6e1c88504df14257
Author: Vitaly Dyachkov <obyknovenius me com>
Date:   Tue Sep 1 17:39:25 2020 +0200

    Fix bug when chart's background color overwrites it's border color

 src/app/hourlyForecast.js | 16 +++++++++-------
 1 file changed, 9 insertions(+), 7 deletions(-)
---
diff --git a/src/app/hourlyForecast.js b/src/app/hourlyForecast.js
index 6e41633..0ae7ddc 100644
--- a/src/app/hourlyForecast.js
+++ b/src/app/hourlyForecast.js
@@ -161,12 +161,6 @@ var HourlyForecastFrame = GObject.registerClass(class ForecastFrame extends Gtk.
         const graphMaxY = frameHeight - frameBorderWidth - lineWidth / 2 - spacing - 
entryTemperatureLabelHeight - spacing;
         const graphHeight = graphMaxY - graphMinY;
 
-        let [, borderColor] = this.get_style_context().lookup_color('temp_graph_border_color');
-        Gdk.cairo_set_source_rgba(cr, borderColor);
-        cr.setLineWidth(lineWidth);
-
-        let [, backgroundColor] = this.get_style_context().lookup_color('temp_graph_background_color');
-        Gdk.cairo_set_source_rgba(cr, backgroundColor);
         let x = 0;
         cr.moveTo (x, graphMinY + ((1 - values[0]) * graphHeight));
 
@@ -179,11 +173,19 @@ var HourlyForecastFrame = GObject.registerClass(class ForecastFrame extends Gtk.
         }
 
         cr.lineTo(frameWidth, graphMinY + ((1 - values[values.length - 1]) * graphHeight));
-        cr.strokePreserve();
 
+        let [, borderColor] = this.get_style_context().lookup_color('temp_graph_border_color');
+        Gdk.cairo_set_source_rgba(cr, borderColor);
+
+        cr.setLineWidth(lineWidth);
+        cr.strokePreserve();
 
         cr.lineTo(frameWidth, frameHeight);
         cr.lineTo(0, frameHeight);
+
+        let [, backgroundColor] = this.get_style_context().lookup_color('temp_graph_background_color');
+        Gdk.cairo_set_source_rgba(cr, backgroundColor);
+
         cr.fill();
 
         cr.$dispose();