diff --git a/kate/ollie_kate.cpp b/kate/ollie_kate.cpp
index b91ace3..1b8fc28 100644
--- a/kate/ollie_kate.cpp
+++ b/kate/ollie_kate.cpp
@@ -10,6 +10,7 @@
 #include <QComboBox>
 #include <QDBusReply>
 #include <QFont>
+#include <QApplication>
 #include <QMenu>
 #include <QDir>
 #include <QFileInfo>
@@ -68,12 +69,16 @@ OllieKateView::OllieKateView(OllieKatePlugin *plugin, KTextEditor::MainWindow *m
 
     // Session indicator
     m_sessionLabel = new QLabel("No session", container);
-    m_sessionLabel->setStyleSheet("font-size: 10px; color: gray; padding: 2px;");
+    m_sessionLabel->setStyleSheet(QStringLiteral("color: gray; padding: 2px;"));
+    m_sessionLabel->setFont(QApplication::font());
     layout->addWidget(m_sessionLabel);
 
     // CWD label
     m_cwdLabel = new QLabel("", container);
-    m_cwdLabel->setStyleSheet("font-size: 9px; color: gray; padding: 0px 2px;");
+    QFont smallFont = QApplication::font();
+    smallFont.setPointSizeF(smallFont.pointSizeF() * 0.85);
+    m_cwdLabel->setStyleSheet(QStringLiteral("color: gray; padding: 0px 2px;"));
+    m_cwdLabel->setFont(smallFont);
     m_cwdLabel->setWordWrap(true);
     layout->addWidget(m_cwdLabel);
 
@@ -111,7 +116,9 @@ OllieKateView::OllieKateView(OllieKatePlugin *plugin, KTextEditor::MainWindow *m
     // Chat view
     m_chatView = new QTextEdit(container);
     m_chatView->setReadOnly(true);
-    m_chatView->setFont(QFont("monospace", 10));
+    QFont monoFont("monospace");
+    monoFont.setPointSize(QApplication::font().pointSize());
+    m_chatView->setFont(monoFont);
     m_chatView->setPlaceholderText("No active session.\nClick 'New' or use context actions.");
     layout->addWidget(m_chatView);
 
diff --git a/krunner/ollie_runner.cpp b/krunner/ollie_runner.cpp
index e01369d..4132b95 100644
--- a/krunner/ollie_runner.cpp
+++ b/krunner/ollie_runner.cpp
@@ -172,7 +172,9 @@ void OllieRunner::run(const RunnerNS::RunnerContext &context, const RunnerNS::Qu
         auto *textEdit = new QTextEdit(dialog);
         textEdit->setReadOnly(true);
         textEdit->setPlainText(result);
-        textEdit->setFont(QFont("monospace", 11));
+        QFont monoFont("monospace");
+        monoFont.setPointSize(QApplication::font().pointSize());
+        textEdit->setFont(monoFont);
         layout->addWidget(textEdit);
 
         auto *buttonLayout = new QHBoxLayout();
diff --git a/plasmoid/contents/ui/main-kf5.qml b/plasmoid/contents/ui/main-kf5.qml
index 44f74bb..0ed7cdd 100644
--- a/plasmoid/contents/ui/main-kf5.qml
+++ b/plasmoid/contents/ui/main-kf5.qml
@@ -62,7 +62,7 @@ Item {
 
             PlasmaComponents.Label {
                 text: dbus.activeCwd || "Ollie"
-                font.pixelSize: parent.height > 0 ? parent.height * 0.5 : 12
+                font.pixelSize: parent.height > 0 ? parent.height * 0.5 : Kirigami.Theme.defaultFont.pixelSize
                 elide: Text.ElideMiddle
             }
         }
@@ -160,7 +160,7 @@ Item {
                         Layout.fillWidth: true
                         elide: Text.ElideRight
                         font.family: "monospace"
-                        font.pixelSize: 11
+                        font.pixelSize: Kirigami.Theme.defaultFont.pixelSize
                         visible: !sessionDelegate.renaming
                     }
 
@@ -168,7 +168,7 @@ Item {
                         id: inlineRenameField
                         Layout.fillWidth: true
                         font.family: "monospace"
-                        font.pixelSize: 11
+                        font.pixelSize: Kirigami.Theme.defaultFont.pixelSize
                         visible: sessionDelegate.renaming
                         onAccepted: {
                             var newName = text.trim()
@@ -195,7 +195,7 @@ Item {
                     Label {
                         text: modelData.agent
                         opacity: 0.7
-                        font.pixelSize: 11
+                        font.pixelSize: Kirigami.Theme.smallFont.pixelSize
                         visible: !sessionDelegate.renaming
                     }
 
@@ -232,7 +232,7 @@ Item {
                     ? "(waiting for output...)"
                     : "Select or create a session")
                 font.family: "monospace"
-                font.pixelSize: 12
+                font.pixelSize: Kirigami.Theme.defaultFont.pixelSize
                 color: dbus.chatText
                     ? Kirigami.Theme.textColor
                     : Kirigami.Theme.disabledTextColor
@@ -283,7 +283,7 @@ Item {
             Layout.fillWidth: true
             Layout.leftMargin: 8
             Layout.bottomMargin: 4
-            font.pixelSize: 10
+            font.pixelSize: Kirigami.Theme.smallFont.pixelSize
             opacity: 0.6
             text: {
                 var id = dbus.activeSessionId
diff --git a/plasmoid/contents/ui/main.qml b/plasmoid/contents/ui/main.qml
index ba683b2..4e80df9 100644
--- a/plasmoid/contents/ui/main.qml
+++ b/plasmoid/contents/ui/main.qml
@@ -63,7 +63,7 @@ PlasmoidItem {
 
             PlasmaComponents.Label {
                 text: dbus.activeCwd || "Ollie"
-                font.pixelSize: parent.height > 0 ? parent.height * 0.5 : 12
+                font.pixelSize: parent.height > 0 ? parent.height * 0.5 : Kirigami.Theme.defaultFont.pixelSize
                 elide: Text.ElideMiddle
             }
         }
@@ -161,7 +161,7 @@ PlasmoidItem {
                         Layout.fillWidth: true
                         elide: Text.ElideRight
                         font.family: "monospace"
-                        font.pixelSize: 11
+                        font.pixelSize: Kirigami.Theme.defaultFont.pixelSize
                         visible: !sessionDelegate.renaming
                     }
 
@@ -169,7 +169,7 @@ PlasmoidItem {
                         id: inlineRenameField
                         Layout.fillWidth: true
                         font.family: "monospace"
-                        font.pixelSize: 11
+                        font.pixelSize: Kirigami.Theme.defaultFont.pixelSize
                         visible: sessionDelegate.renaming
                         onAccepted: {
                             let newName = text.trim()
@@ -196,7 +196,7 @@ PlasmoidItem {
                     Label {
                         text: modelData.agent
                         opacity: 0.7
-                        font.pixelSize: 11
+                        font.pixelSize: Kirigami.Theme.smallFont.pixelSize
                         visible: !sessionDelegate.renaming
                     }
 
@@ -233,7 +233,7 @@ PlasmoidItem {
                     ? "(waiting for output...)"
                     : "Select or create a session")
                 font.family: "monospace"
-                font.pixelSize: 12
+                font.pixelSize: Kirigami.Theme.defaultFont.pixelSize
                 color: dbus.chatText
                     ? Kirigami.Theme.textColor
                     : Kirigami.Theme.disabledTextColor
@@ -286,7 +286,7 @@ PlasmoidItem {
             Layout.fillWidth: true
             Layout.leftMargin: 8
             Layout.bottomMargin: 4
-            font.pixelSize: 10
+            font.pixelSize: Kirigami.Theme.smallFont.pixelSize
             opacity: 0.6
             text: {
                 let id = dbus.activeSessionId