diff --git a/chart/chart_bar.scss b/chart/chart_bar.scss
index e69de29..d91d029 100644
--- a/chart/chart_bar.scss
+++ b/chart/chart_bar.scss
@@ -0,0 +1,6 @@
+svg .positive rect {
+  fill: darkolivegreen;
+}
+svg .negative rect {
+  fill: crimson;
+}
\ No newline at end of file