Chronos exporter: Updated the image

Change-Id: Ie18078788d7f7a9aa25276e073f1d01a0a99b415
diff --git a/chronos-exporter/Chart.yaml b/chronos-exporter/Chart.yaml
index a7a878f..9a8d535 100644
--- a/chronos-exporter/Chart.yaml
+++ b/chronos-exporter/Chart.yaml
@@ -7,7 +7,7 @@
 description: Chronos Exporter

 kubeVersion: ">=1.15.0"

 type: application

-version: 0.0.14

+version: 0.0.15

 appVersion: v0.0.10

 keywords:

   - aether

diff --git a/chronos-exporter/files/images/tx-usa.png b/chronos-exporter/files/images/tx-usa.png
index 6dda83f..1d568c7 100644
--- a/chronos-exporter/files/images/tx-usa.png
+++ b/chronos-exporter/files/images/tx-usa.png
Binary files differ