diff --git a/novelwriter/assets/icons/typicons_dark/typ_tick.svg b/novelwriter/assets/icons/typicons_dark/typ_tick.svg
deleted file mode 100644
index 84383114..00000000
--- a/novelwriter/assets/icons/typicons_dark/typ_tick.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"
-   version="1.2"
-   width="24"
-   height="24"
-   viewBox="0 0 24 24"
-   id="svg896">
-  <metadata
-     id="metadata902">
-    <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="defs900" />
-  <path
-     d="M 19.576035,3.3487939 C 18.237131,2.6038813 16.550693,3.0884898 15.809935,4.4246248 L 10.66893,13.676495 7.726664,10.734229 c -1.0813694,-1.0813704 -2.8342677,-1.0813704 -3.9156371,0 -1.0813693,1.081369 -1.0813693,2.834267 0,3.915637 l 5.538383,5.538383 c 0.523378,0.524762 1.2295221,0.812758 1.9578191,0.812758 l 0.383533,-0.02769 c 0.859834,-0.12046 1.614439,-0.636914 2.03674,-1.397057 L 20.650482,7.1148966 C 21.39401,5.777375 20.91217,4.0923218 19.576035,3.3487939 Z"
-     id="path894"
-     style="stroke-width:1.3846;fill:#99cc99;fill-opacity:1" />
-</svg>
diff --git a/novelwriter/assets/icons/typicons_light/typ_tick.svg b/novelwriter/assets/icons/typicons_light/typ_tick.svg
deleted file mode 100644
index 1c24677a..00000000
--- a/novelwriter/assets/icons/typicons_light/typ_tick.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"
-   version="1.2"
-   width="24"
-   height="24"
-   viewBox="0 0 24 24"
-   id="svg896">
-  <metadata
-     id="metadata902">
-    <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="defs900" />
-  <path
-     d="M 19.576035,3.3487939 C 18.237131,2.6038813 16.550693,3.0884898 15.809935,4.4246248 L 10.66893,13.676495 7.726664,10.734229 c -1.0813694,-1.0813704 -2.8342677,-1.0813704 -3.9156371,0 -1.0813693,1.081369 -1.0813693,2.834267 0,3.915637 l 5.538383,5.538383 c 0.523378,0.524762 1.2295221,0.812758 1.9578191,0.812758 l 0.383533,-0.02769 c 0.859834,-0.12046 1.614439,-0.636914 2.03674,-1.397057 L 20.650482,7.1148966 C 21.39401,5.777375 20.91217,4.0923218 19.576035,3.3487939 Z"
-     id="path894"
-     style="stroke-width:1.3846;fill:#718c00;fill-opacity:1" />
-</svg>
diff --git a/novelwriter/gui/projtree.py b/novelwriter/gui/projtree.py
index b80a6352..0055340a 100644
--- a/novelwriter/gui/projtree.py
+++ b/novelwriter/gui/projtree.py
@@ -951,10 +951,13 @@ class GuiProjectTree(QTreeWidget):
         trItem.setToolTip(self.C_STATUS, itemStatus)
 
         if nwItem.isFileType():
-            iconName = "check" if nwItem.isActive else "cross"
+            iconName = "checked" if nwItem.isActive else "unchecked"
             toolTip = self._lblActive if nwItem.isActive else self._lblInactive
-            trItem.setIcon(self.C_ACTIVE, self.mainTheme.getIcon(iconName))
             trItem.setToolTip(self.C_ACTIVE, toolTip)
+        else:
+            iconName = "noncheckable"
+
+        trItem.setIcon(self.C_ACTIVE, self.mainTheme.getIcon(iconName))
 
         if self.mainConf.emphLabels and nwItem.isDocumentLayout():
             trFont = trItem.font(self.C_NAME)
diff --git a/novelwriter/gui/theme.py b/novelwriter/gui/theme.py
index 93c26440..570b06b2 100644
--- a/novelwriter/gui/theme.py
+++ b/novelwriter/gui/theme.py
@@ -448,9 +448,9 @@ class GuiIcons:
         "view_editor", "view_novel", "view_outline",
 
         # General Button Icons
-        "add", "backward", "bookmark", "check", "close", "cross", "down", "edit", "forward",
-        "maximise", "menu", "minimise", "reference", "refresh", "remove", "search_replace",
-        "search", "settings", "up",
+        "add", "backward", "bookmark", "checked", "close", "cross", "down", "edit", "forward",
+        "maximise", "menu", "minimise", "noncheckable", "reference", "refresh", "remove",
+        "search_replace", "search", "settings", "unchecked", "up",
 
         # Switches
         "sticky-on", "sticky-off",