diff --git a/assets/images/svg/h_calc.svg b/assets/images/svg/h_calc.svg
new file mode 100644
index 00000000..9b379f50
--- /dev/null
+++ b/assets/images/svg/h_calc.svg
@@ -0,0 +1,8 @@
+
diff --git a/assets/images/svg/h_calc_selected.svg b/assets/images/svg/h_calc_selected.svg
new file mode 100644
index 00000000..1922bc0f
--- /dev/null
+++ b/assets/images/svg/h_calc_selected.svg
@@ -0,0 +1,3 @@
+