[gnome-taquin] Make arrows more visible.

[Arnaud B. <arnaudb src gnome org>]

commit e0cb28331d11283cdc6282d9867b17f5a3a27e04
Author: Arnaud Bonatti <arnaud bonatti gmail com>
Date:   Fri Jan 18 18:45:26 2019 +0100

    Make arrows more visible.
    
    It feels quite important on small window.

 src/taquin-view.vala | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/src/taquin-view.vala b/src/taquin-view.vala
index 6a21228..8fa2386 100644
--- a/src/taquin-view.vala
+++ b/src/taquin-view.vala
@@ -158,7 +158,7 @@ public class TaquinView : Gtk.DrawingArea
         cr.stroke ();
 
         /* Drawing arrows */
-        cr.set_source_rgba (0.25, 0.25, 0.25, 1.0 - animation_end_offset);
+        cr.set_source_rgba (0.5, 0.5, 0.5, 1.0 - animation_end_offset);
         cr.set_line_width (arrows);
         if (game.game_type == GameType.SIXTEEN)
         {
@@ -308,7 +308,7 @@ public class TaquinView : Gtk.DrawingArea
     private void draw_movable_lights (Cairo.Context cr)
     {
         cr.save ();
-        cr.set_source_rgba (0.8, 0.8, 0.8, 0.3 - 0.3 * animation_end_offset);
+        cr.set_source_rgba (0.7, 0.7, 0.7, 0.3 - 0.3 * animation_end_offset);
         /* horizontals */
         cr.save ();
         cr.translate (grid_border_main + tile_size * (x_arrow + 0.5), (grid_border_main + grid_border_thin)/ 
2.0);