diff --git a/novelwriter/assets/icons/typicons_dark/icons.conf b/novelwriter/assets/icons/typicons_dark/icons.conf
index 46da8b3e..c347bf3c 100644
--- a/novelwriter/assets/icons/typicons_dark/icons.conf
+++ b/novelwriter/assets/icons/typicons_dark/icons.conf
@@ -34,11 +34,6 @@ cls_timeline    = typ_calendar.svg
 cls_trash       = typ_trash.svg
 cls_world       = typ_location.svg
 cross           = typ_times.svg
-doc_h0          = mixed_heading0.svg
-doc_h1          = mixed_heading1.svg
-doc_h2          = mixed_heading2.svg
-doc_h3          = mixed_heading3.svg
-doc_h4          = mixed_heading4.svg
 down            = typ_chevron-down.svg
 edit            = typ_pencil.svg
 forward         = typ_chevron-right.svg
diff --git a/novelwriter/assets/icons/typicons_dark/mixed_heading0.svg b/novelwriter/assets/icons/typicons_dark/mixed_heading0.svg
deleted file mode 100644
index 65ca642c..00000000
--- a/novelwriter/assets/icons/typicons_dark/mixed_heading0.svg
+++ /dev/null
@@ -1,31 +0,0 @@
-<?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/novelwriter/assets/icons/typicons_dark/mixed_heading1.svg b/novelwriter/assets/icons/typicons_dark/mixed_heading1.svg
deleted file mode 100644
index faad4e82..00000000
--- a/novelwriter/assets/icons/typicons_dark/mixed_heading1.svg
+++ /dev/null
@@ -1,37 +0,0 @@
-<?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" />
-  <circle
-     r="2.2222221"
-     cy="4.2222223"
-     cx="19.470242"
-     id="path2467"
-     style="fill:#6699cc;fill-opacity:1;stroke:none;stroke-width:1.99999988;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1" />
-</svg>
diff --git a/novelwriter/assets/icons/typicons_dark/mixed_heading2.svg b/novelwriter/assets/icons/typicons_dark/mixed_heading2.svg
deleted file mode 100644
index 08c8ad09..00000000
--- a/novelwriter/assets/icons/typicons_dark/mixed_heading2.svg
+++ /dev/null
@@ -1,43 +0,0 @@
-<?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" />
-  <circle
-     r="2.2222221"
-     cy="4.2222223"
-     cx="19.470242"
-     id="path2467"
-     style="fill:#6699cc;fill-opacity:1;stroke:none;stroke-width:1.99999988;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1" />
-  <circle
-     style="fill:#6699cc;fill-opacity:1;stroke:none;stroke-width:1.99999988;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1"
-     id="circle2469"
-     cx="19.470242"
-     cy="9.4077778"
-     r="2.2222221" />
-</svg>
diff --git a/novelwriter/assets/icons/typicons_dark/mixed_heading3.svg b/novelwriter/assets/icons/typicons_dark/mixed_heading3.svg
deleted file mode 100644
index b5a35871..00000000
--- a/novelwriter/assets/icons/typicons_dark/mixed_heading3.svg
+++ /dev/null
@@ -1,49 +0,0 @@
-<?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" />
-  <circle
-     r="2.2222221"
-     cy="4.2222223"
-     cx="19.470242"
-     id="path2467"
-     style="fill:#6699cc;fill-opacity:1;stroke:none;stroke-width:1.99999988;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1" />
-  <circle
-     style="fill:#6699cc;fill-opacity:1;stroke:none;stroke-width:1.99999988;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1"
-     id="circle2469"
-     cx="19.470242"
-     cy="9.4077778"
-     r="2.2222221" />
-  <circle
-     r="2.2222221"
-     cy="14.592222"
-     cx="19.470242"
-     id="circle2471"
-     style="fill:#6699cc;fill-opacity:1;stroke:none;stroke-width:1.99999988;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1" />
-</svg>
diff --git a/novelwriter/assets/icons/typicons_dark/mixed_heading4.svg b/novelwriter/assets/icons/typicons_dark/mixed_heading4.svg
deleted file mode 100644
index 718c0746..00000000
--- a/novelwriter/assets/icons/typicons_dark/mixed_heading4.svg
+++ /dev/null
@@ -1,59 +0,0 @@
-<?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" />
-  <g
-     transform="matrix(1.1111111,0,0,1.1111111,-1.3333334,-1.3333332)"
-     id="g2616">
-    <path
-       d="m 4.029904,3.7531206 c -1.0041608,1.0041608 -1.0041608,2.6319041 0,3.6360649 L 8.6392724,11.999839 4.029904,16.610493 c -1.0041608,1.004161 -1.0041608,2.631904 0,3.636065 C 4.5313415,20.749281 5.189639,21 5.8479364,21 c 0.658298,0 1.316595,-0.250719 1.818033,-0.753442 L 15.913973,11.999839 7.6659694,3.7531206 c -1.002876,-1.0041608 -2.6331904,-1.0041608 -3.6360654,0 z"
-       id="path1895"
-       style="fill:#6699cc;fill-opacity:1;stroke-width:1.28573728" />
-    <circle
-       style="fill:#6699cc;fill-opacity:1;stroke:none;stroke-width:1.79999995;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1"
-       id="path2467"
-       cx="18.723217"
-       cy="5"
-       r="2" />
-    <circle
-       r="2"
-       cy="9.6669998"
-       cx="18.723217"
-       id="circle2469"
-       style="fill:#6699cc;fill-opacity:1;stroke:none;stroke-width:1.79999995;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1" />
-    <circle
-       style="fill:#6699cc;fill-opacity:1;stroke:none;stroke-width:1.79999995;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1"
-       id="circle2471"
-       cx="18.723217"
-       cy="14.333"
-       r="2" />
-    <circle
-       r="2"
-       cy="19"
-       cx="18.723217"
-       id="circle2473"
-       style="fill:#6699cc;fill-opacity:1;stroke:none;stroke-width:1.79999995;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1" />
-  </g>
-</svg>
diff --git a/novelwriter/assets/icons/typicons_light/icons.conf b/novelwriter/assets/icons/typicons_light/icons.conf
index 7649328c..796b170f 100644
--- a/novelwriter/assets/icons/typicons_light/icons.conf
+++ b/novelwriter/assets/icons/typicons_light/icons.conf
@@ -34,11 +34,6 @@ cls_timeline    = typ_calendar.svg
 cls_trash       = typ_trash.svg
 cls_world       = typ_location.svg
 cross           = typ_times.svg
-doc_h0          = mixed_heading0.svg
-doc_h1          = mixed_heading1.svg
-doc_h2          = mixed_heading2.svg
-doc_h3          = mixed_heading3.svg
-doc_h4          = mixed_heading4.svg
 down            = typ_chevron-down.svg
 edit            = typ_pencil.svg
 forward         = typ_chevron-right.svg
diff --git a/novelwriter/assets/icons/typicons_light/mixed_heading0.svg b/novelwriter/assets/icons/typicons_light/mixed_heading0.svg
deleted file mode 100644
index 87155b79..00000000
--- a/novelwriter/assets/icons/typicons_light/mixed_heading0.svg
+++ /dev/null
@@ -1,31 +0,0 @@
-<?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/novelwriter/assets/icons/typicons_light/mixed_heading1.svg b/novelwriter/assets/icons/typicons_light/mixed_heading1.svg
deleted file mode 100644
index 89276c97..00000000
--- a/novelwriter/assets/icons/typicons_light/mixed_heading1.svg
+++ /dev/null
@@ -1,37 +0,0 @@
-<?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" />
-  <circle
-     r="2.2222221"
-     cy="4.2222223"
-     cx="19.470242"
-     id="path2467"
-     style="fill:#4271ae;fill-opacity:1;stroke:none;stroke-width:1.99999988;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1" />
-</svg>
diff --git a/novelwriter/assets/icons/typicons_light/mixed_heading2.svg b/novelwriter/assets/icons/typicons_light/mixed_heading2.svg
deleted file mode 100644
index 5f69658e..00000000
--- a/novelwriter/assets/icons/typicons_light/mixed_heading2.svg
+++ /dev/null
@@ -1,43 +0,0 @@
-<?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" />
-  <circle
-     r="2.2222221"
-     cy="4.2222223"
-     cx="19.470242"
-     id="path2467"
-     style="fill:#4271ae;fill-opacity:1;stroke:none;stroke-width:1.99999988;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1" />
-  <circle
-     style="fill:#4271ae;fill-opacity:1;stroke:none;stroke-width:1.99999988;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1"
-     id="circle2469"
-     cx="19.470242"
-     cy="9.4077778"
-     r="2.2222221" />
-</svg>
diff --git a/novelwriter/assets/icons/typicons_light/mixed_heading3.svg b/novelwriter/assets/icons/typicons_light/mixed_heading3.svg
deleted file mode 100644
index b7a33025..00000000
--- a/novelwriter/assets/icons/typicons_light/mixed_heading3.svg
+++ /dev/null
@@ -1,49 +0,0 @@
-<?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" />
-  <circle
-     r="2.2222221"
-     cy="4.2222223"
-     cx="19.470242"
-     id="path2467"
-     style="fill:#4271ae;fill-opacity:1;stroke:none;stroke-width:1.99999988;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1" />
-  <circle
-     style="fill:#4271ae;fill-opacity:1;stroke:none;stroke-width:1.99999988;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1"
-     id="circle2469"
-     cx="19.470242"
-     cy="9.4077778"
-     r="2.2222221" />
-  <circle
-     r="2.2222221"
-     cy="14.592222"
-     cx="19.470242"
-     id="circle2471"
-     style="fill:#4271ae;fill-opacity:1;stroke:none;stroke-width:1.99999988;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1" />
-</svg>
diff --git a/novelwriter/assets/icons/typicons_light/mixed_heading4.svg b/novelwriter/assets/icons/typicons_light/mixed_heading4.svg
deleted file mode 100644
index 50b0b351..00000000
--- a/novelwriter/assets/icons/typicons_light/mixed_heading4.svg
+++ /dev/null
@@ -1,55 +0,0 @@
-<?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" />
-  <circle
-     r="2.2222221"
-     cy="4.2222223"
-     cx="19.470242"
-     id="path2467"
-     style="fill:#4271ae;fill-opacity:1;stroke:none;stroke-width:1.99999988;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1" />
-  <circle
-     style="fill:#4271ae;fill-opacity:1;stroke:none;stroke-width:1.99999988;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1"
-     id="circle2469"
-     cx="19.470242"
-     cy="9.4077778"
-     r="2.2222221" />
-  <circle
-     r="2.2222221"
-     cy="14.592222"
-     cx="19.470242"
-     id="circle2471"
-     style="fill:#4271ae;fill-opacity:1;stroke:none;stroke-width:1.99999988;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1" />
-  <circle
-     style="fill:#4271ae;fill-opacity:1;stroke:none;stroke-width:1.99999988;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1"
-     id="circle2473"
-     cx="19.470242"
-     cy="19.777779"
-     r="2.2222221" />
-</svg>
diff --git a/novelwriter/dialogs/projdetails.py b/novelwriter/dialogs/projdetails.py
index 67ab6ebe..bcd5d0f5 100644
--- a/novelwriter/dialogs/projdetails.py
+++ b/novelwriter/dialogs/projdetails.py
@@ -512,10 +512,11 @@ class GuiProjectDetailsContents(QWidget):
                 progPage = f"{cPage:n}"
                 progText = f"{pgProg:.1f}{nwUnicode.U_THSP}%"
 
+            hDec = self.mainTheme.getHeaderDecoration(tLevel)
             if tTitle.strip() == "":
                 tTitle = self.tr("Untitled")
 
-            newItem.setIcon(self.C_TITLE, self.mainTheme.getIcon("doc_h%d" % tLevel))
+            newItem.setData(self.C_TITLE, Qt.DecorationRole, hDec)
             newItem.setText(self.C_TITLE, tTitle)
             newItem.setText(self.C_WORDS, f"{wCount:n}")
             newItem.setText(self.C_PAGES, f"{pCount:n}")