Optimized cloud-moon (#1260)

* Add `variable` icon

* Add `constant` icon

* Add `pi` (constant) icon

* Update icons/pi.svg

Co-authored-by: Jakob Guddas <github@jguddas.de>

* Refine `pi` icon

---------

Co-authored-by: Jakob Guddas <github@jguddas.de>

icons/circle-dot.json

@@ -4,7 +4,11 @@
     "pending",
     "dot",
     "progress",
-    "issue"
+    "issue",
+    "radio button",
+    "choices",
+    "multiple choice",
+    "choose"
   ],
   "categories": [
     "shapes"

icons/cloud-moon.svg

@@ -9,6 +9,6 @@
   stroke-linecap="round"
   stroke-linejoin="round"
 >
-  <path d="M13 22H7a5 5 0 1 1 4.9-6H13a3 3 0 0 1 0 6Z" />
-  <path d="M10.083 9A6.002 6.002 0 0 1 16 4a4.243 4.243 0 0 0 6 6c0 2.22-1.206 4.16-3 5.197" />
+  <path d="M13 16a3 3 0 1 1 0 6H7a5 5 0 1 1 4.9-6Z" />
+  <path d="M10.1 9A6 6 0 0 1 16 4a4.24 4.24 0 0 0 6 6 6 6 0 0 1-3 5.197" />
 </svg>

icons/pi.json

@@ -0,0 +1,18 @@
+{
+  "$schema": "../icon.schema.json",
+  "tags": [
+    "constant",
+    "code",
+    "coding",
+    "programming",
+    "symbol",
+    "trigonometry",
+    "geometry",
+    "formula"
+  ],
+  "categories": [
+    "development",
+    "maths",
+    "shapes"
+  ]
+}

icons/pi.svg

@@ -0,0 +1,15 @@
+<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"
+>
+  <line x1="9" x2="9" y1="4" y2="20" />
+  <path d="M4 7c0-1.7 1.3-3 3-3h13" />
+  <path d="M18 20c-1.7 0-3-1.3-3-3V4" />
+</svg>

icons/sigma.json

@@ -4,7 +4,9 @@
     "sum",
     "calculate",
     "formula",
-    "maths"
+    "maths",
+    "enumeration",
+    "enumerate"
   ],
   "categories": [
     "text",

icons/triangle.json

@@ -1,8 +1,11 @@
 {
   "$schema": "../icon.schema.json",
   "tags": [
+    "equilateral",
     "delta",
-    "shape"
+    "shape",
+    "pyramid",
+    "hierarchy"
   ],
   "categories": [
     "shapes"

icons/variable.json

@@ -0,0 +1,19 @@
+{
+  "$schema": "../icon.schema.json",
+  "tags": [
+    "code",
+    "coding",
+    "programming",
+    "symbol",
+    "calculate",
+    "algebra",
+    "x",
+    "parentheses",
+    "parenthesis",
+    "brackets"
+  ],
+  "categories": [
+    "development",
+    "maths"
+  ]
+}

icons/variable.svg

@@ -0,0 +1,16 @@
+<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="M8 21s-4-3-4-9 4-9 4-9" />
+  <path d="M16 3s4 3 4 9-4 9-4 9" />
+  <line x1="15" x2="9" y1="9" y2="15" />
+  <line x1="9" x2="15" y1="9" y2="15" />
+</svg>