diff --git a/nw/assets/icons/typicons_colour_dark/heading0.svg b/nw/assets/icons/typicons_colour_dark/heading0.svg
new file mode 100644
index 00000000..65ca642c
--- /dev/null
+++ b/nw/assets/icons/typicons_colour_dark/heading0.svg
@@ -0,0 +1,31 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   xmlns:dc="http://purl.org/dc/elements/1.1/"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   id="svg1897"
+   viewBox="0 0 24 24"
+   height="24"
+   width="24"
+   version="1.2">
+  <metadata
+     id="metadata1903">
+    <rdf:RDF>
+      <cc:Work
+         rdf:about="">
+        <dc:format>image/svg+xml</dc:format>
+        <dc:type
+           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
+        <dc:title></dc:title>
+      </cc:Work>
+    </rdf:RDF>
+  </metadata>
+  <defs
+     id="defs1901" />
+  <path
+     style="fill:#6699cc;fill-opacity:1;stroke-width:1.42859697"
+     id="path1895"
+     d="m 3.1443377,2.8368008 c -1.1157342,1.1157342 -1.1157342,2.9243378 0,4.040072 L 8.2658581,11.999821 3.1443377,17.12277 c -1.1157342,1.115734 -1.1157342,2.924338 0,4.040072 C 3.7014904,21.721423 4.4329321,22 5.1643736,22 5.8958159,22 6.627257,21.721423 7.1844103,21.162842 L 16.348859,11.999821 7.1844103,2.8368008 c -1.1143067,-1.1157343 -2.9257671,-1.1157343 -4.0400726,0 z" />
+</svg>
diff --git a/nw/assets/icons/typicons_colour_dark/icons.conf b/nw/assets/icons/typicons_colour_dark/icons.conf
index d4671820..5d4c0f2e 100644
--- a/nw/assets/icons/typicons_colour_dark/icons.conf
+++ b/nw/assets/icons/typicons_colour_dark/icons.conf
@@ -29,6 +29,7 @@ cls_archive    = delete.svg
 cls_trash      = trash.svg
 proj_document  = document-text.svg
 proj_folder    = folder.svg
+doc_h0         = heading0.svg
 doc_h1         = heading1.svg
 doc_h2         = heading2.svg
 doc_h3         = heading3.svg
diff --git a/nw/assets/icons/typicons_colour_light/heading0.svg b/nw/assets/icons/typicons_colour_light/heading0.svg
new file mode 100644
index 00000000..87155b79
--- /dev/null
+++ b/nw/assets/icons/typicons_colour_light/heading0.svg
@@ -0,0 +1,31 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   xmlns:dc="http://purl.org/dc/elements/1.1/"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   id="svg1897"
+   viewBox="0 0 24 24"
+   height="24"
+   width="24"
+   version="1.2">
+  <metadata
+     id="metadata1903">
+    <rdf:RDF>
+      <cc:Work
+         rdf:about="">
+        <dc:format>image/svg+xml</dc:format>
+        <dc:type
+           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
+        <dc:title></dc:title>
+      </cc:Work>
+    </rdf:RDF>
+  </metadata>
+  <defs
+     id="defs1901" />
+  <path
+     style="fill:#4271ae;fill-opacity:1;stroke-width:1.42859697"
+     id="path1895"
+     d="m 3.1443377,2.8368008 c -1.1157342,1.1157342 -1.1157342,2.9243378 0,4.040072 L 8.2658581,11.999821 3.1443377,17.12277 c -1.1157342,1.115734 -1.1157342,2.924338 0,4.040072 C 3.7014904,21.721423 4.4329321,22 5.1643736,22 5.8958159,22 6.627257,21.721423 7.1844103,21.162842 L 16.348859,11.999821 7.1844103,2.8368008 c -1.1143067,-1.1157343 -2.9257671,-1.1157343 -4.0400726,0 z" />
+</svg>
diff --git a/nw/assets/icons/typicons_colour_light/icons.conf b/nw/assets/icons/typicons_colour_light/icons.conf
index 4f9ffb6c..775aa4d5 100644
--- a/nw/assets/icons/typicons_colour_light/icons.conf
+++ b/nw/assets/icons/typicons_colour_light/icons.conf
@@ -29,6 +29,7 @@ cls_archive    = delete.svg
 cls_trash      = trash.svg
 proj_document  = document-text.svg
 proj_folder    = folder.svg
+doc_h0         = heading0.svg
 doc_h1         = heading1.svg
 doc_h2         = heading2.svg
 doc_h3         = heading3.svg
diff --git a/nw/assets/icons/typicons_grey_dark/heading0.svg b/nw/assets/icons/typicons_grey_dark/heading0.svg
new file mode 100644
index 00000000..4cf4dcc3
--- /dev/null
+++ b/nw/assets/icons/typicons_grey_dark/heading0.svg
@@ -0,0 +1,31 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   xmlns:dc="http://purl.org/dc/elements/1.1/"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   id="svg1897"
+   viewBox="0 0 24 24"
+   height="24"
+   width="24"
+   version="1.2">
+  <metadata
+     id="metadata1903">
+    <rdf:RDF>
+      <cc:Work
+         rdf:about="">
+        <dc:format>image/svg+xml</dc:format>
+        <dc:type
+           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
+        <dc:title></dc:title>
+      </cc:Work>
+    </rdf:RDF>
+  </metadata>
+  <defs
+     id="defs1901" />
+  <path
+     style="fill:#aeaeae;fill-opacity:1;stroke-width:1.42859697"
+     id="path1895"
+     d="m 3.1443377,2.8368008 c -1.1157342,1.1157342 -1.1157342,2.9243378 0,4.040072 L 8.2658581,11.999821 3.1443377,17.12277 c -1.1157342,1.115734 -1.1157342,2.924338 0,4.040072 C 3.7014904,21.721423 4.4329321,22 5.1643736,22 5.8958159,22 6.627257,21.721423 7.1844103,21.162842 L 16.348859,11.999821 7.1844103,2.8368008 c -1.1143067,-1.1157343 -2.9257671,-1.1157343 -4.0400726,0 z" />
+</svg>
diff --git a/nw/assets/icons/typicons_grey_dark/icons.conf b/nw/assets/icons/typicons_grey_dark/icons.conf
index 7dae46e9..7dc56936 100644
--- a/nw/assets/icons/typicons_grey_dark/icons.conf
+++ b/nw/assets/icons/typicons_grey_dark/icons.conf
@@ -29,6 +29,7 @@ cls_archive    = delete.svg
 cls_trash      = trash.svg
 proj_document  = document-text.svg
 proj_folder    = folder.svg
+doc_h0         = heading0.svg
 doc_h1         = heading1.svg
 doc_h2         = heading2.svg
 doc_h3         = heading3.svg
diff --git a/nw/assets/icons/typicons_grey_light/heading0.svg b/nw/assets/icons/typicons_grey_light/heading0.svg
new file mode 100644
index 00000000..b6377afe
--- /dev/null
+++ b/nw/assets/icons/typicons_grey_light/heading0.svg
@@ -0,0 +1,31 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   xmlns:dc="http://purl.org/dc/elements/1.1/"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   id="svg1897"
+   viewBox="0 0 24 24"
+   height="24"
+   width="24"
+   version="1.2">
+  <metadata
+     id="metadata1903">
+    <rdf:RDF>
+      <cc:Work
+         rdf:about="">
+        <dc:format>image/svg+xml</dc:format>
+        <dc:type
+           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
+        <dc:title></dc:title>
+      </cc:Work>
+    </rdf:RDF>
+  </metadata>
+  <defs
+     id="defs1901" />
+  <path
+     style="fill:#000000;fill-opacity:0.78039217;stroke-width:1.42859697"
+     id="path1895"
+     d="m 3.1443377,2.8368008 c -1.1157342,1.1157342 -1.1157342,2.9243378 0,4.040072 L 8.2658581,11.999821 3.1443377,17.12277 c -1.1157342,1.115734 -1.1157342,2.924338 0,4.040072 C 3.7014904,21.721423 4.4329321,22 5.1643736,22 5.8958159,22 6.627257,21.721423 7.1844103,21.162842 L 16.348859,11.999821 7.1844103,2.8368008 c -1.1143067,-1.1157343 -2.9257671,-1.1157343 -4.0400726,0 z" />
+</svg>
diff --git a/nw/assets/icons/typicons_grey_light/icons.conf b/nw/assets/icons/typicons_grey_light/icons.conf
index f21000cb..7c47ba7d 100644
--- a/nw/assets/icons/typicons_grey_light/icons.conf
+++ b/nw/assets/icons/typicons_grey_light/icons.conf
@@ -29,6 +29,7 @@ cls_archive    = delete.svg
 cls_trash      = trash.svg
 proj_document  = document-text.svg
 proj_folder    = folder.svg
+doc_h0         = heading0.svg
 doc_h1         = heading1.svg
 doc_h2         = heading2.svg
 doc_h3         = heading3.svg
diff --git a/nw/gui/theme.py b/nw/gui/theme.py
index 61e2fca7..8b14e4de 100644
--- a/nw/gui/theme.py
+++ b/nw/gui/theme.py
@@ -529,6 +529,7 @@ class GuiIcons:
         "status_time"     : (None, None),
         "status_stats"    : (None, None),
         "status_lines"    : (None, None),
+        "doc_h0"          : (QStyle.SP_FileIcon, "x-office-document"),
         "doc_h1"          : (QStyle.SP_FileIcon, "x-office-document"),
         "doc_h2"          : (QStyle.SP_FileIcon, "x-office-document"),
         "doc_h3"          : (QStyle.SP_FileIcon, "x-office-document"),