diff --git a/icons/outline/chart-covariate.svg b/icons/outline/chart-covariate.svg
new file mode 100644
index 000000000..624c1178d
--- /dev/null
+++ b/icons/outline/chart-covariate.svg
@@ -0,0 +1,20 @@
+<!--
+-->
+<svg
+  xmlns="http://www.w3.org/2000/svg"
+  width="24"
+  height="24"
+  viewBox="0 0 24 24"
+  fill="none"
+  stroke="currentColor"
+  stroke-width="2"
+  stroke-linecap="round"
+  stroke-linejoin="round"
+>
+  <path d="M18 11h.009" />
+  <path d="M14 15h.009" />
+  <path d="M12 6h.009" />
+  <path d="M8 10h.009" />
+  <path d="M3 21l17 -17" />
+  <path d="M3 3v18h18" />
+</svg>
diff --git a/icons/outline/congruent-to.svg b/icons/outline/congruent-to.svg
new file mode 100644
index 000000000..c8f6ebea4
--- /dev/null
+++ b/icons/outline/congruent-to.svg
@@ -0,0 +1,17 @@
+<!--
+-->
+<svg
+  xmlns="http://www.w3.org/2000/svg"
+  width="24"
+  height="24"
+  viewBox="0 0 24 24"
+  fill="none"
+  stroke="currentColor"
+  stroke-width="2"
+  stroke-linecap="round"
+  stroke-linejoin="round"
+>
+  <path d="M5 13h14" />
+  <path d="M5 17h14" />
+  <path d="M5 7.686c2.333 -2.624 4.667 -1.856 7 .064s4.667 2.688 7 .064" />
+</svg>