diff --git a/public/icons/cafour.png b/public/icons/cafour.png
new file mode 100644
index 0000000..4185d4e
Binary files /dev/null and b/public/icons/cafour.png differ
diff --git a/public/icons/caution.png b/public/icons/caution.png
new file mode 100644
index 0000000..ca08d90
Binary files /dev/null and b/public/icons/caution.png differ
diff --git a/public/icons/edit_15.png b/public/icons/edit_15.png
new file mode 100644
index 0000000..da600dc
Binary files /dev/null and b/public/icons/edit_15.png differ
diff --git a/public/icons/edit_16.aseprite b/public/icons/edit_16.aseprite
new file mode 100644
index 0000000..9126c6b
Binary files /dev/null and b/public/icons/edit_16.aseprite differ
diff --git a/public/icons/edit_32.aseprite b/public/icons/edit_32.aseprite
new file mode 100644
index 0000000..1c5d325
Binary files /dev/null and b/public/icons/edit_32.aseprite differ
diff --git a/public/icons/edit_32.png b/public/icons/edit_32.png
new file mode 100644
index 0000000..2b7f415
Binary files /dev/null and b/public/icons/edit_32.png differ
diff --git a/public/icons/edit_8.aseprite b/public/icons/edit_8.aseprite
new file mode 100644
index 0000000..d79e178
Binary files /dev/null and b/public/icons/edit_8.aseprite differ
diff --git a/public/icons/edit_8.png b/public/icons/edit_8.png
new file mode 100644
index 0000000..e3a0287
Binary files /dev/null and b/public/icons/edit_8.png differ
diff --git a/public/icons/fi_16.aseprite b/public/icons/fi_16.aseprite
new file mode 100644
index 0000000..ebab8c6
Binary files /dev/null and b/public/icons/fi_16.aseprite differ
diff --git a/public/icons/fi_16.ico b/public/icons/fi_16.ico
new file mode 100644
index 0000000..8dc42b6
Binary files /dev/null and b/public/icons/fi_16.ico differ
diff --git a/public/icons/fi_16.png b/public/icons/fi_16.png
new file mode 100644
index 0000000..abe948e
Binary files /dev/null and b/public/icons/fi_16.png differ
diff --git a/public/icons/fi_16.svg b/public/icons/fi_16.svg
new file mode 100644
index 0000000..a36332a
--- /dev/null
+++ b/public/icons/fi_16.svg
@@ -0,0 +1,6 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 -0.5 16 16" shape-rendering="crispEdges" preserveAspectRatio="xMinYMin ">
+<metadata>Made with Pixels to Svg https://codepen.io/shshaw/pen/XbxvNj</metadata>
+<path stroke="#e3b53d" d="M1 0h9M0 1h1M10 1h1M15 1h1M10 2h1M15 2h1M15 3h1M4 4h1M6 4h2M14 4h1M4 5h2M8 5h1M14 5h1M8 6h1M13 6h1M13 7h1M6 8h1M12 8h1M6 9h1M12 9h1M7 10h1M11 10h1M7 11h1M11 11h1M7 12h1M10 12h1M10 13h1M9 14h1M7 15h3" />
+<path stroke="#000000" d="M11 0h4M11 1h4M0 2h10M12 2h2M0 3h10M12 3h2M1 4h2M11 4h2M1 5h2M11 5h2M2 6h2M5 6h3M10 6h2M2 7h2M5 7h3M10 7h2M3 8h2M9 8h2M3 9h2M9 9h2M4 10h2M8 10h2M4 11h2M8 11h2M5 12h2M8 12h1M5 13h4M6 14h2" />
+<path stroke="#f1d46c" d="M1 1h9M11 2h1M14 2h1M11 3h1M14 3h1M3 4h1M13 4h1M3 5h1M6 5h2M13 5h1M4 6h1M12 6h1M4 7h1M12 7h1M5 8h1M11 8h1M5 9h1M11 9h1M6 10h1M10 10h1M6 11h1M10 11h1M9 12h1M9 13h1M8 14h1" />
+</svg>
diff --git a/public/icons/fi_32.aseprite b/public/icons/fi_32.aseprite
new file mode 100644
index 0000000..4f6d186
Binary files /dev/null and b/public/icons/fi_32.aseprite differ
diff --git a/public/icons/fi_32.ico b/public/icons/fi_32.ico
new file mode 100644
index 0000000..b66722b
Binary files /dev/null and b/public/icons/fi_32.ico differ
diff --git a/public/icons/fi_32.png b/public/icons/fi_32.png
new file mode 100644
index 0000000..43febd8
Binary files /dev/null and b/public/icons/fi_32.png differ
diff --git a/public/icons/fortunate_brain_32.aseprite b/public/icons/fortunate_brain_32.aseprite
new file mode 100644
index 0000000..f94383d
Binary files /dev/null and b/public/icons/fortunate_brain_32.aseprite differ
diff --git a/public/icons/fortunate_brain_32.png b/public/icons/fortunate_brain_32.png
new file mode 100644
index 0000000..f7ef41e
Binary files /dev/null and b/public/icons/fortunate_brain_32.png differ
diff --git a/public/icons/important.png b/public/icons/important.png
new file mode 100644
index 0000000..c447af4
Binary files /dev/null and b/public/icons/important.png differ
diff --git a/public/icons/left_panel_open_8.aseprite b/public/icons/left_panel_open_8.aseprite
new file mode 100644
index 0000000..a1f686c
Binary files /dev/null and b/public/icons/left_panel_open_8.aseprite differ
diff --git a/public/icons/left_panel_open_8.png b/public/icons/left_panel_open_8.png
new file mode 100644
index 0000000..9f167ad
Binary files /dev/null and b/public/icons/left_panel_open_8.png differ
diff --git a/public/icons/note.png b/public/icons/note.png
new file mode 100644
index 0000000..3d3f795
Binary files /dev/null and b/public/icons/note.png differ
diff --git a/public/icons/octicons.txt b/public/icons/octicons.txt
deleted file mode 100644
index 038b531..0000000
--- a/public/icons/octicons.txt
+++ /dev/null
@@ -1,7 +0,0 @@
-const DEFAULT_GITHUB_ICONS = {
-  note: '<svg class="octicon octicon-info mr-2" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="M0 8a8 8 0 1 1 16 0A8 8 0 0 1 0 8Zm8-6.5a6.5 6.5 0 1 0 0 13 6.5 6.5 0 0 0 0-13ZM6.5 7.75A.75.75 0 0 1 7.25 7h1a.75.75 0 0 1 .75.75v2.75h.25a.75.75 0 0 1 0 1.5h-2a.75.75 0 0 1 0-1.5h.25v-2h-.25a.75.75 0 0 1-.75-.75ZM8 6a1 1 0 1 1 0-2 1 1 0 0 1 0 2Z"></path></svg>',
-  tip: '<svg class="octicon octicon-light-bulb mr-2" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="M8 1.5c-2.363 0-4 1.69-4 3.75 0 .984.424 1.625.984 2.304l.214.253c.223.264.47.556.673.848.284.411.537.896.621 1.49a.75.75 0 0 1-1.484.211c-.04-.282-.163-.547-.37-.847a8.456 8.456 0 0 0-.542-.68c-.084-.1-.173-.205-.268-.32C3.201 7.75 2.5 6.766 2.5 5.25 2.5 2.31 4.863 0 8 0s5.5 2.31 5.5 5.25c0 1.516-.701 2.5-1.328 3.259-.095.115-.184.22-.268.319-.207.245-.383.453-.541.681-.208.3-.33.565-.37.847a.751.751 0 0 1-1.485-.212c.084-.593.337-1.078.621-1.489.203-.292.45-.584.673-.848.075-.088.147-.173.213-.253.561-.679.985-1.32.985-2.304 0-2.06-1.637-3.75-4-3.75ZM5.75 12h4.5a.75.75 0 0 1 0 1.5h-4.5a.75.75 0 0 1 0-1.5ZM6 15.25a.75.75 0 0 1 .75-.75h2.5a.75.75 0 0 1 0 1.5h-2.5a.75.75 0 0 1-.75-.75Z"></path></svg>',
-  important: '<svg class="octicon octicon-report mr-2" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="M0 1.75C0 .784.784 0 1.75 0h12.5C15.216 0 16 .784 16 1.75v9.5A1.75 1.75 0 0 1 14.25 13H8.06l-2.573 2.573A1.458 1.458 0 0 1 3 14.543V13H1.75A1.75 1.75 0 0 1 0 11.25Zm1.75-.25a.25.25 0 0 0-.25.25v9.5c0 .138.112.25.25.25h2a.75.75 0 0 1 .75.75v2.19l2.72-2.72a.749.749 0 0 1 .53-.22h6.5a.25.25 0 0 0 .25-.25v-9.5a.25.25 0 0 0-.25-.25Zm7 2.25v2.5a.75.75 0 0 1-1.5 0v-2.5a.75.75 0 0 1 1.5 0ZM9 9a1 1 0 1 1-2 0 1 1 0 0 1 2 0Z"></path></svg>',
-  warning: '<svg class="octicon octicon-alert mr-2" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="M6.457 1.047c.659-1.234 2.427-1.234 3.086 0l6.082 11.378A1.75 1.75 0 0 1 14.082 15H1.918a1.75 1.75 0 0 1-1.543-2.575Zm1.763.707a.25.25 0 0 0-.44 0L1.698 13.132a.25.25 0 0 0 .22.368h12.164a.25.25 0 0 0 .22-.368Zm.53 3.996v2.5a.75.75 0 0 1-1.5 0v-2.5a.75.75 0 0 1 1.5 0ZM9 11a1 1 0 1 1-2 0 1 1 0 0 1 2 0Z"></path></svg>',
-  caution: '<svg class="octicon octicon-stop mr-2" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="M4.47.22A.749.749 0 0 1 5 0h6c.199 0 .389.079.53.22l4.25 4.25c.141.14.22.331.22.53v6a.749.749 0 0 1-.22.53l-4.25 4.25A.749.749 0 0 1 11 16H5a.749.749 0 0 1-.53-.22L.22 11.53A.749.749 0 0 1 0 11V5c0-.199.079-.389.22-.53Zm.84 1.28L1.5 5.31v5.38l3.81 3.81h5.38l3.81-3.81V5.31L10.69 1.5ZM8 4a.75.75 0 0 1 .75.75v3.5a.75.75 0 0 1-1.5 0v-3.5A.75.75 0 0 1 8 4Zm0 8a1 1 0 1 1 0-2 1 1 0 0 1 0 2Z"></path></svg>'
-};
\ No newline at end of file
diff --git a/public/icons/tip.png b/public/icons/tip.png
new file mode 100644
index 0000000..cf1a668
Binary files /dev/null and b/public/icons/tip.png differ
diff --git a/public/icons/warning.png b/public/icons/warning.png
new file mode 100644
index 0000000..090828e
Binary files /dev/null and b/public/icons/warning.png differ
diff --git a/src/content/docs/szmgr/SZP05_krivky_a_povrchy.md b/src/content/docs/szmgr/SZP05_krivky_a_povrchy.md
index f72d219..0406546 100644
--- a/src/content/docs/szmgr/SZP05_krivky_a_povrchy.md
+++ b/src/content/docs/szmgr/SZP05_krivky_a_povrchy.md
@@ -684,5 +684,4 @@ Polygonové povrchy dělíme v případě, kdy chceme je zjemnit, vyhladit.
 - [NURBS Calculator](http://nurbscalculator.in/)
 - [ČVUT: Computer Graphics](https://mat.fs.cvut.cz/computer-graphics/)
 
-&lt;div class="fortunate-brain">
-&lt;/div>
+<div class="fortunate-brain"></div>
diff --git a/src/styles/theme.css b/src/styles/theme.css
index d6bd945..67b68de 100644
--- a/src/styles/theme.css
+++ b/src/styles/theme.css
@@ -36,4 +36,26 @@
 
 blockquote {
     font-style: italic;
+}
+
+.fortunate-brain {
+    position: relative;
+    width: 100%;
+    text-align: center;
+    display: flex;
+    flex-direction: row;
+    justify-content: center;
+}
+
+.fortunate-brain::before {
+    background-image: url("/icons/fortunate_brain_32.png");
+    background-repeat: no-repeat;
+    background-size: contain;
+    image-rendering: pixelated;
+    inset: 0;
+    width: 5rem;
+    height: 5rem;
+    opacity: .7;
+    display: block;
+    content: " ";
 }
\ No newline at end of file