Lookup colours from style context

src/rugby-possibility-widget.c

@@ -78,7 +78,7 @@ render_bar (GtkSnapshot  *snapshot,
             float         x,
             float         w,
             float         h,
-            const GdkRGBA color)
+            const GdkRGBA rgba)
 {
     graphene_rect_t area = GRAPHENE_RECT_INIT (x, 0.0, w, h);
 
@@ -89,7 +89,7 @@ render_bar (GtkSnapshot  *snapshot,
 
     gtk_snapshot_push_rounded_clip (snapshot, &rounded);
     gtk_snapshot_append_color (snapshot,
-                               &color,
+                               &rgba,
                                &area);
     gtk_snapshot_pop (snapshot);
 
@@ -122,13 +122,15 @@ rugby_possibility_widget_snapshot (GtkWidget   *widget,
                   NULL);
     int score = tries * try_points + utries * utry_points + kicks * kick_points;
 
+    GtkStyleContext *ctx = gtk_widget_get_style_context (widget);
+    GdkRGBA rgba;
+
     // Tries
     float w = width / (score / (float) try_points);
     for (int i = 0; i < tries; i++)
     {
-        // Green
-        render_bar (snapshot, x, w, height,
-                    (GdkRGBA) { 0.20, 0.82, 0.48, 1.0 });
+        gtk_style_context_lookup_color (ctx, "green_3", &rgba);
+        render_bar (snapshot, x, w, height, rgba);
         x += w;
     }
 
@@ -136,9 +138,8 @@ rugby_possibility_widget_snapshot (GtkWidget   *widget,
     w = width / (score / (float) utry_points);
     for (int i = 0; i < utries; i++)
     {
-        // Red
-        render_bar (snapshot, x, w, height,
-                    (GdkRGBA) { 0.88, 0.11, 0.14, 1.0 });
+        gtk_style_context_lookup_color (ctx, "red_3", &rgba);
+        render_bar (snapshot, x, w, height, rgba);
         x += w;
     }
 
@@ -146,9 +147,8 @@ rugby_possibility_widget_snapshot (GtkWidget   *widget,
     w = width / (score / (float) kick_points);
     for (int i = 0; i < kicks; i++)
     {
-        // Yellow
-        render_bar (snapshot, x, w, height,
-                    (GdkRGBA) { 0.96, 0.83, 0.18, 1.0 });
+        gtk_style_context_lookup_color (ctx, "yellow_3", &rgba);
+        render_bar (snapshot, x, w, height, rgba);
         x += w;
     }
 }