diff --git a/libraries/BLT-With-Graphics-Template b/libraries/BLT-With-Graphics-Template
index d8b77ac..fab759d 160000
--- a/libraries/BLT-With-Graphics-Template
+++ b/libraries/BLT-With-Graphics-Template
@@ -1 +1 @@
-Subproject commit d8b77acd4f6d71393e65539e3ad738aebb3375e1
+Subproject commit fab759dd4c7c1dd02feae2f2d6c3eb28ceac09da
diff --git a/src/shifting.cpp b/src/shifting.cpp
index 17cc69a..a356ae8 100644
--- a/src/shifting.cpp
+++ b/src/shifting.cpp
@@ -29,10 +29,10 @@ inline constexpr char from_char(char c)
 struct vertex_data
 {
     char name;
-    HASHSET<char> neighbours;
+    blt::hashset_t<char> neighbours;
     blt::vec2 pos;
     
-    vertex_data(char name, const HASHSET<char>& n): name(from_char(name))
+    vertex_data(char name, const blt::hashset_t<char>& n): name(from_char(name))
     {
         for (const auto& v : n)
             neighbours.insert(from_char(v));
@@ -104,19 +104,19 @@ bool intersects(const blt::vec2& A, const blt::vec2& B, const blt::vec2& C, cons
 }
 
 std::vector<vertex_data> edges = {
-        vertex_data{'a', HASHSET<char>{'i', 'e', 'b', 'j', 'h'}},
-        vertex_data{'b', HASHSET<char>{'a', 'e', 'c', 'j'}},
-        vertex_data{'c', HASHSET<char>{'e', 'd', 'f', 'j', 'b'}},
-        vertex_data{'d', HASHSET<char>{'e', 'f', 'c'}},
-        vertex_data{'e', HASHSET<char>{'h', 'f', 'd', 'c', 'b', 'a', 'i'}},
-        vertex_data{'f', HASHSET<char>{'d', 'e', 'h', 'g', 'j', 'c'}},
-        vertex_data{'g', HASHSET<char>{'j', 'f', 'h'}},
-        vertex_data{'h', HASHSET<char>{'j', 'g', 'f', 'e', 'i', 'a'}},
-        vertex_data{'i', HASHSET<char>{'e', 'a', 'h'}},
-        vertex_data{'j', HASHSET<char>{'a', 'b', 'c', 'f', 'g', 'h'}},
+        vertex_data{'a', blt::hashset_t<char>{'i', 'e', 'b', 'j', 'h'}},
+        vertex_data{'b', blt::hashset_t<char>{'a', 'e', 'c', 'j'}},
+        vertex_data{'c', blt::hashset_t<char>{'e', 'd', 'f', 'j', 'b'}},
+        vertex_data{'d', blt::hashset_t<char>{'e', 'f', 'c'}},
+        vertex_data{'e', blt::hashset_t<char>{'h', 'f', 'd', 'c', 'b', 'a', 'i'}},
+        vertex_data{'f', blt::hashset_t<char>{'d', 'e', 'h', 'g', 'j', 'c'}},
+        vertex_data{'g', blt::hashset_t<char>{'j', 'f', 'h'}},
+        vertex_data{'h', blt::hashset_t<char>{'j', 'g', 'f', 'e', 'i', 'a'}},
+        vertex_data{'i', blt::hashset_t<char>{'e', 'a', 'h'}},
+        vertex_data{'j', blt::hashset_t<char>{'a', 'b', 'c', 'f', 'g', 'h'}},
 };
 
-HASHSET<char>& getEdges(char c)
+blt::hashset_t<char>& getEdges(char c)
 {
     for (auto& e : edges)
         if (e.name == c)