diff --git a/CHANGELOG.md b/CHANGELOG.md
index d816b76d..9735f306 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,7 @@
 ## [UNRELEASED] · YYYY-MM-DD
 ### ✨ Added
 - Add a "Save Memory" setting that evicts inactive datasets from RAM and reloads them on demand ([#647](https://github.com/cbrnr/mnelab/pull/647) by [Clemens Brunner](https://github.com/cbrnr))
+- Add icons for "Change Reference", "Interpolate Bad Channels", and "Documentation" actions ([#650](https://github.com/cbrnr/mnelab/pull/650) by [Clemens Brunner](https://github.com/cbrnr))
 
 ### 🔧 Fixed
 - Enforce minimum sidebar and info widget widths so they can no longer be hidden ([#642](https://github.com/cbrnr/mnelab/pull/642) by [Clemens Brunner](https://github.com/cbrnr))
diff --git a/src/mnelab/icons/dark/actions/change-reference.svg b/src/mnelab/icons/dark/actions/change-reference.svg
new file mode 100644
index 00000000..b682828b
--- /dev/null
+++ b/src/mnelab/icons/dark/actions/change-reference.svg
@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" height="24" viewBox="0 -960 960 960" fill="white" width="24"><path d="m482-200 114-113-114-113-42 42 43 43q-28 1-54.5-9T381-381q-20-20-30.5-46T340-479q0-17 4.5-34t12.5-33l-44-44q-17 25-25 53t-8 57q0 38 15 75t44 66q29 29 65 43.5t74 15.5l-38 38 42 42Zm165-170q17-25 25-53t8-57q0-38-14.5-75.5T622-622q-29-29-65.5-43T482-679l38-39-42-42-114 113 114 113 42-42-44-44q27 0 55 10.5t48 30.5q20 20 30.5 46t10.5 52q0 17-4.5 34T603-414l44 44ZM480-80q-83 0-156-31.5T197-197q-54-54-85.5-127T80-480q0-83 31.5-156T197-763q54-54 127-85.5T480-880q83 0 156 31.5T763-763q54 54 85.5 127T880-480q0 83-31.5 156T763-197q-54 54-127 85.5T480-80Zm0-80q134 0 227-93t93-227q0-134-93-227t-227-93q-134 0-227 93t-93 227q0 134 93 227t227 93Zm0-320Z"/></svg>
diff --git a/src/mnelab/icons/dark/actions/documentation.svg b/src/mnelab/icons/dark/actions/documentation.svg
new file mode 100644
index 00000000..5c13d3a1
--- /dev/null
+++ b/src/mnelab/icons/dark/actions/documentation.svg
@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" height="24" viewBox="0 -960 960 960" fill="white" width="24"><path d="M513.5-254.5Q528-269 528-290t-14.5-35.5Q499-340 478-340t-35.5 14.5Q428-311 428-290t14.5 35.5Q457-240 478-240t35.5-14.5ZM442-394h74q0-33 7.5-52t42.5-52q26-26 41-49.5t15-56.5q0-56-41-86t-97-30q-57 0-92.5 30T342-618l66 26q5-18 22.5-39t53.5-21q32 0 48 17.5t16 38.5q0 20-12 37.5T506-526q-44 39-54 59t-10 73Zm38 314q-83 0-156-31.5T197-197q-54-54-85.5-127T80-480q0-83 31.5-156T197-763q54-54 127-85.5T480-880q83 0 156 31.5T763-763q54 54 85.5 127T880-480q0 83-31.5 156T763-197q-54 54-127 85.5T480-80Zm0-80q134 0 227-93t93-227q0-134-93-227t-227-93q-134 0-227 93t-93 227q0 134 93 227t227 93Zm0-320Z"/></svg>
diff --git a/src/mnelab/icons/dark/actions/interpolate-bads.svg b/src/mnelab/icons/dark/actions/interpolate-bads.svg
new file mode 100644
index 00000000..7cacae04
--- /dev/null
+++ b/src/mnelab/icons/dark/actions/interpolate-bads.svg
@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" height="24" viewBox="0 -960 960 960" fill="white" width="24"><path d="M423.5-663.5Q400-687 400-720t23.5-56.5Q447-800 480-800t56.5 23.5Q560-753 560-720t-23.5 56.5Q513-640 480-640t-56.5-23.5ZM183.5-423.5Q160-447 160-480t23.5-56.5Q207-560 240-560t56.5 23.5Q320-513 320-480t-23.5 56.5Q273-400 240-400t-56.5-23.5ZM663.5-423.5Q640-447 640-480t23.5-56.5Q687-560 720-560t56.5 23.5Q800-513 800-480t-23.5 56.5Q753-400 720-400t-56.5-23.5ZM423.5-183.5Q400-207 400-240t23.5-56.5Q447-320 480-320t56.5 23.5Q560-273 560-240t-23.5 56.5Q513-160 480-160t-56.5-23.5Z"/></svg>
diff --git a/src/mnelab/icons/light/actions/change-reference.svg b/src/mnelab/icons/light/actions/change-reference.svg
new file mode 100644
index 00000000..cf9f766a
--- /dev/null
+++ b/src/mnelab/icons/light/actions/change-reference.svg
@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" height="24" viewBox="0 -960 960 960" fill="black" width="24"><path d="m482-200 114-113-114-113-42 42 43 43q-28 1-54.5-9T381-381q-20-20-30.5-46T340-479q0-17 4.5-34t12.5-33l-44-44q-17 25-25 53t-8 57q0 38 15 75t44 66q29 29 65 43.5t74 15.5l-38 38 42 42Zm165-170q17-25 25-53t8-57q0-38-14.5-75.5T622-622q-29-29-65.5-43T482-679l38-39-42-42-114 113 114 113 42-42-44-44q27 0 55 10.5t48 30.5q20 20 30.5 46t10.5 52q0 17-4.5 34T603-414l44 44ZM480-80q-83 0-156-31.5T197-197q-54-54-85.5-127T80-480q0-83 31.5-156T197-763q54-54 127-85.5T480-880q83 0 156 31.5T763-763q54 54 85.5 127T880-480q0 83-31.5 156T763-197q-54 54-127 85.5T480-80Zm0-80q134 0 227-93t93-227q0-134-93-227t-227-93q-134 0-227 93t-93 227q0 134 93 227t227 93Zm0-320Z"/></svg>
diff --git a/src/mnelab/icons/light/actions/documentation.svg b/src/mnelab/icons/light/actions/documentation.svg
new file mode 100644
index 00000000..4ec0c580
--- /dev/null
+++ b/src/mnelab/icons/light/actions/documentation.svg
@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" height="24" viewBox="0 -960 960 960" fill="black" width="24"><path d="M513.5-254.5Q528-269 528-290t-14.5-35.5Q499-340 478-340t-35.5 14.5Q428-311 428-290t14.5 35.5Q457-240 478-240t35.5-14.5ZM442-394h74q0-33 7.5-52t42.5-52q26-26 41-49.5t15-56.5q0-56-41-86t-97-30q-57 0-92.5 30T342-618l66 26q5-18 22.5-39t53.5-21q32 0 48 17.5t16 38.5q0 20-12 37.5T506-526q-44 39-54 59t-10 73Zm38 314q-83 0-156-31.5T197-197q-54-54-85.5-127T80-480q0-83 31.5-156T197-763q54-54 127-85.5T480-880q83 0 156 31.5T763-763q54 54 85.5 127T880-480q0 83-31.5 156T763-197q-54 54-127 85.5T480-80Zm0-80q134 0 227-93t93-227q0-134-93-227t-227-93q-134 0-227 93t-93 227q0 134 93 227t227 93Zm0-320Z"/></svg>
diff --git a/src/mnelab/icons/light/actions/interpolate-bads.svg b/src/mnelab/icons/light/actions/interpolate-bads.svg
new file mode 100644
index 00000000..3dfca95b
--- /dev/null
+++ b/src/mnelab/icons/light/actions/interpolate-bads.svg
@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" height="24" viewBox="0 -960 960 960" fill="black" width="24"><path d="M423.5-663.5Q400-687 400-720t23.5-56.5Q447-800 480-800t56.5 23.5Q560-753 560-720t-23.5 56.5Q513-640 480-640t-56.5-23.5ZM183.5-423.5Q160-447 160-480t23.5-56.5Q207-560 240-560t56.5 23.5Q320-513 320-480t-23.5 56.5Q273-400 240-400t-56.5-23.5ZM663.5-423.5Q640-447 640-480t23.5-56.5Q687-560 720-560t56.5 23.5Q800-513 800-480t-23.5 56.5Q753-400 720-400t-56.5-23.5ZM423.5-183.5Q400-207 400-240t23.5-56.5Q447-320 480-320t56.5 23.5Q560-273 560-240t-23.5 56.5Q513-160 480-160t-56.5-23.5Z"/></svg>
diff --git a/src/mnelab/mainwindow.py b/src/mnelab/mainwindow.py
index 79f44552..77162d49 100644
--- a/src/mnelab/mainwindow.py
+++ b/src/mnelab/mainwindow.py
@@ -226,7 +226,7 @@ def __init__(self, model: Model):
         )
         channels_menu.addSeparator()
         self.all_actions["change_ref"] = channels_menu.addAction(
-            QIcon.fromTheme("placeholder"),
+            QIcon.fromTheme("change-reference"),
             "Change &Reference...",
             self.change_reference,
         )
@@ -242,7 +242,7 @@ def __init__(self, model: Model):
             lambda: self.export_file(model.export_bads, "Export bad channels", "*.csv"),
         )
         self.all_actions["interpolate_bads"] = channels_menu.addAction(
-            QIcon.fromTheme("placeholder"),
+            QIcon.fromTheme("interpolate-bads"),
             "Interpolate Bad Channels",
             self.interpolate_bads,
         )
@@ -453,7 +453,7 @@ def __init__(self, model: Model):
             )
         help_menu.addSeparator()
         self.all_actions["documentation"] = help_menu.addAction(
-            QIcon.fromTheme("placeholder"),
+            QIcon.fromTheme("documentation"),
             "&Documentation",
             self.show_documentation,
         )