diff --git a/build/release.nxt b/build/release.nxt
index be60d4d..86cf8ba 100644
--- a/build/release.nxt
+++ b/build/release.nxt
@@ -7,7 +7,6 @@
     "references": [
         "make_unreal_plugin.nxt",
         "make_maya_plugin.nxt",
-        "make_blender_plugin.nxt",
         "../../nxt/build/release.nxt"
     ],
     "comp_overrides": {
@@ -143,6 +142,7 @@
         },
         "/CreateRelease/UploadBlenderAddon": {
             "instance": "/GitUpload",
+            "enabled": false,
             "attrs": {
                 "asset_path": {
                     "type": "raw",
@@ -201,7 +201,8 @@
             "execute_in": "/make_module_folder",
             "child_order": [
                 "zip_blender_addon"
-            ]
+            ],
+            "enabled": false
         },
         "/make_addon/zip_blender_addon": {
             "attrs": {
diff --git a/nxt_editor/constants.py b/nxt_editor/constants.py
index 66a3d48..6ab2edd 100644
--- a/nxt_editor/constants.py
+++ b/nxt_editor/constants.py
@@ -1,7 +1,8 @@
 # Builtin
 import os
 import json
-
+# External
+from Qt import QtGui, QtWidgets
 # Internal
 from nxt.constants import USER_DIR
 
@@ -21,11 +22,47 @@ class EDITOR_VERSION(object):
     VERSION = VERSION_STR
 
 
-class FONTS(object):
-    DEFAULT_FAMILY = 'Roboto Mono'
-    DEFAULT_SIZE = 10
+class _FontManager:
+    def __init__(self):
+        self._initialized = False
+        self._font_db = QtGui.QFontDatabase()
+        self.DEFAULT_SIZE = 10
+        self._default_family = "Sans Serif"
+        self._code_family = "Monospace"
+
+    def initialize(self):
+        if self._initialized:
+            return
+        if not QtWidgets.QApplication.instance():
+            return
+        roboto_id = self._font_db.addApplicationFont(":/fonts/fonts/Roboto/Roboto-Regular.ttf")
+        mono_id = self._font_db.addApplicationFont(":/fonts/fonts/RobotoMono/RobotoMono-Regular.ttf")
+
+        if roboto_id != -1:
+            self._default_family = self._font_db.applicationFontFamilies(roboto_id)[0]
+        if mono_id != -1:
+            self._code_family = self._font_db.applicationFontFamilies(mono_id)[0]
+
+        self._initialized = True
+
+    @property
+    def DEFAULT_FAMILY(self):
+        self.initialize()
+        return self._default_family
+
+    @property
+    def MONOSPACE(self):
+        self.initialize()
+        return self._code_family
+
+    def default_font(self, size=None):
+        return QtGui.QFont(self.DEFAULT_FAMILY, size or self.DEFAULT_SIZE)
+
+    def monospace_font(self, size=None):
+        return QtGui.QFont(self.MONOSPACE, size or self.DEFAULT_SIZE)
 
 
+FONTS = _FontManager()
 PREF_DIR_INT = EDITOR_VERSION.MAJOR
 PREF_DIR_NAME = 'prefs'
 _pref_dir_num = str(PREF_DIR_INT)
diff --git a/nxt_editor/dockwidgets/code_editor.py b/nxt_editor/dockwidgets/code_editor.py
index dd1b42d..037c548 100644
--- a/nxt_editor/dockwidgets/code_editor.py
+++ b/nxt_editor/dockwidgets/code_editor.py
@@ -16,6 +16,7 @@
 from nxt import DATA_STATE, nxt_path
 from nxt.nxt_node import INTERNAL_ATTRS
 from nxt_editor.dockwidgets import syntax
+from nxt_editor.constants import FONTS
 import nxt_editor
 
 logger = logging.getLogger(nxt_editor.LOGGER_NAME)
@@ -72,7 +73,7 @@ def __init__(self, title='Code Editor', parent=None, minimum_width=500):
         self.details_layout.addLayout(self.name_layout)
 
         self.name_label = LabelEdit(parent=self.details_frame)
-        self.name_label.setFont(QtGui.QFont("Roboto", 14))
+        self.name_label.setFont(QtGui.QFont(FONTS.DEFAULT_FAMILY, 14))
         self.name_label.nameChangeRequested.connect(self.edit_name)
         self.name_layout.addWidget(self.name_label, 0, QtCore.Qt.AlignLeft)
 
@@ -86,7 +87,7 @@ def __init__(self, title='Code Editor', parent=None, minimum_width=500):
         self.name_layout.addWidget(self.name_edit_button, 0, QtCore.Qt.AlignLeft)
 
         self.path_label = QtWidgets.QLabel(parent=self.details_frame)
-        self.path_label.setFont(QtGui.QFont("Roboto Mono", 8))
+        self.path_label.setFont(QtGui.QFont(FONTS.MONOSPACE, 8))
         self.path_label.setStyleSheet('color: grey')
         self.details_layout.addWidget(self.path_label)
 
@@ -600,9 +601,8 @@ def __init__(self, show_line_numbers=True, highlight_current_line=True,
         self.setFocusPolicy(QtCore.Qt.ClickFocus)
 
         # font settings
-        self.font_size = 10
-        self.font_family = 'Roboto Mono'
-        self.setFont(QtGui.QFont(self.font_family, self.font_size))
+        self.font_size = FONTS.DEFAULT_SIZE
+        self.setFont(FONTS.monospace_font(self.font_size))
         self.setLineWrapMode(QtWidgets.QPlainTextEdit.NoWrap)
 
         # display settings
@@ -754,7 +754,9 @@ def set_font_size(self, delta=0.0, default=False):
             self.font_size = 10
         else:
             self.font_size += delta
-        self.setFont(QtGui.QFont(self.font_family, self.font_size))
+        font = self.font()
+        font.setPointSize(self.font_size)
+        self.setFont(font)
 
     def update_previous_scroll_positions(self):
         self.prev_v_scroll_value = self.verticalScrollBar().value()
@@ -1217,7 +1219,6 @@ def __init__(self, editor, color):
         self.editor = editor
         self.editor.blockCountChanged.connect(self.update_width)
         self.editor.updateRequest.connect(self.update_contents)
-        self.font = QtGui.QFont()
         self.color = QtGui.QColor(color)
         self.update_width()
 
@@ -1231,7 +1232,7 @@ def paintEvent(self, event):
             changed_lines = []
         # Iterate over all visible text blocks in the document.
         while block.isValid():
-            self.font.setBold(False)
+            self.font().setBold(False)
             block_number = block.blockNumber()
             block_top = self.editor.blockBoundingGeometry(block).translated(
                 self.editor.contentOffset()).top()
@@ -1241,7 +1242,7 @@ def paintEvent(self, event):
             # We want the line number for the selected line to be bold.
             painter.setPen(QtGui.QColor(colors.LIGHTER_TEXT))
             if block_number == self.editor.textCursor().blockNumber():
-                self.font.setBold(True)
+                self.font().setBold(True)
             else:
                 painter.setPen(colors.DEFAULT_TEXT)
             # Draw the line number right justified at the position of the line.
@@ -1252,7 +1253,7 @@ def paintEvent(self, event):
                 painter.fillRect(paint_rect, colors.UNSAVED)
                 painter.setPen(colors.LIGHTEST_TEXT)
                 changed_lines.remove(block_number)
-            painter.setFont(self.font)
+            painter.setFont(self.font())
             text_rect = paint_rect.marginsAdded(QtCore.QMargins(0, 0, -4, 0))
             painter.drawText(text_rect, QtCore.Qt.AlignRight,
                              str(block_number + 1))
@@ -1288,8 +1289,8 @@ def update_contents(self, rect, scroll):
 
         if rect.contains(self.editor.viewport().rect()):
             font_size = self.editor.currentCharFormat().font().pointSize()
-            self.font.setPointSize(font_size)
-            self.font.setStyle(QtGui.QFont.StyleNormal)
+            self.font().setPointSize(font_size)
+            self.font().setStyle(QtGui.QFont.StyleNormal)
             self.update_width()
 
 
@@ -1310,7 +1311,7 @@ def __init__(self, parent=None):
     def paintEvent(self, event):
         painter = QtGui.QPainter()
         painter.begin(self)
-        painter.setFont(QtGui.QFont("Roboto", 14))
+        painter.setFont(QtGui.QFont(FONTS.MONOSPACE, 14))
         font_metrics = QtGui.QFontMetrics(painter.font())
         painter.setRenderHint(QtGui.QPainter.Antialiasing)
         # actual_display_state
diff --git a/nxt_editor/dockwidgets/hotkey_editor.py b/nxt_editor/dockwidgets/hotkey_editor.py
index d7bc6a7..62debc3 100644
--- a/nxt_editor/dockwidgets/hotkey_editor.py
+++ b/nxt_editor/dockwidgets/hotkey_editor.py
@@ -6,6 +6,7 @@
 
 # Internal
 import nxt_editor
+from nxt_editor.constants import FONTS
 from nxt_editor.dockwidgets.dock_widget_base import DockWidgetBase
 from nxt_editor import colors, dialogs
 
@@ -28,14 +29,14 @@
                 'other shortcut.</p>')
 
 TOOLTIP_STYLE = '''QToolTip {
-                    font-family: Roboto Mono;
+                    font-family: %s;
                     background-color: #3E3E3E;
                     border: 1px solid #232323;
-                }'''
+                }''' % (FONTS.MONOSPACE,)
 
 TABLE_STYLE = '''QTableView {
-                    font-family: Roboto Mono;
-                }'''
+                    font-family: %s;
+                }''' % (FONTS.MONOSPACE,)
 
 
 class HotkeyEditor(DockWidgetBase):
diff --git a/nxt_editor/dockwidgets/output_log.py b/nxt_editor/dockwidgets/output_log.py
index 0ec8508..95fb276 100644
--- a/nxt_editor/dockwidgets/output_log.py
+++ b/nxt_editor/dockwidgets/output_log.py
@@ -12,6 +12,7 @@
 # Internal
 import nxt_editor
 from nxt_editor import user_dir
+from nxt_editor.constants import FONTS
 from nxt_editor.dockwidgets.dock_widget_base import DockWidgetBase
 from nxt import nxt_log
 from nxt_editor import LoggingSignaler, colors
@@ -99,7 +100,7 @@ def format(self, record):
             links = []
         if links:
             text = self.format_links(text, links)
-        msg = '<font face="Roboto Mono" color="white">{}</font>'.format(text)
+        msg = '<font face="{}" color="white">{}</font>'.format(FONTS.MONOSPACE, text)
         if multi:
             replacement = (msg, record.msg[1])
         else:
@@ -377,10 +378,10 @@ def write_rich_output(self, val, level=None):
             else:
                 text = val
             color = colors.LOGGING_COLORS.get(level, 'white')
-            html = '<font face="Roboto Mono" color="{}">'.format(color)
+            html = '<font face="{}" color="{}">'.format(FONTS.MONOSPACE, color)
             style = ("<style type='text/css'> "
-                     "pre {margin: 0; font-family: 'Roboto Mono';} "
-                     "</style>")
+                     "pre {margin: 0; font-family: '%s';} "
+                     "</style>" % (FONTS.DEFAULT_FAMILY,))
             text = style + ("<pre>{}</pre>".format(text))
             html += text + '</font>'
             self.rich_output_textedit.insertHtml(html)
@@ -431,7 +432,7 @@ def __init__(self, parent):
         self._parent = parent
         self.setStyleSheet(self.parent().parent().styleSheet())
         self.setReadOnly(True)
-        self.setFont(QtGui.QFont('Roboto Mono', 10))
+        self.setFont(QtGui.QFont(FONTS.MONOSPACE, 10))
 
     def contextMenuEvent(self, event):
         menu = self.createStandardContextMenu()
@@ -447,7 +448,7 @@ def __init__(self, parent):
         self.anchorClicked.connect(self.parent().link_clicked)
         self.setStyleSheet(self.parent().parent().styleSheet())
         self.setOpenLinks(False)
-        self.setFont(QtGui.QFont('Roboto Mono', 10))
+        self.setFont(QtGui.QFont(FONTS.MONOSPACE, 10))
 
     def contextMenuEvent(self, event):
         menu = self.createStandardContextMenu()
diff --git a/nxt_editor/dockwidgets/property_editor.py b/nxt_editor/dockwidgets/property_editor.py
index 2c114e0..b492a5e 100644
--- a/nxt_editor/dockwidgets/property_editor.py
+++ b/nxt_editor/dockwidgets/property_editor.py
@@ -16,6 +16,7 @@
 
 # Internal
 from nxt_editor import user_dir
+from nxt_editor.constants import FONTS
 from nxt_editor.dockwidgets.dock_widget_base import DockWidgetBase
 from nxt_editor.pixmap_button import PixmapButton
 from nxt_editor.label_edit import LabelEdit
@@ -1481,11 +1482,11 @@ def __init__(self, parent=None):
                         }
 
                         QToolTip {
-                            font-family: Roboto Mono;
+                            font-family: %s;
                             color: white;
                             border: 1px solid #3E3E3E
                         }
-                        '''
+                        ''' % (FONTS.MONOSPACE,)
         self.setStyleSheet(style)
         self._parent = parent
         self.node_path_delegate = NodePathBtnDelegate(self)
diff --git a/nxt_editor/main_window.py b/nxt_editor/main_window.py
index a478e59..2328c76 100644
--- a/nxt_editor/main_window.py
+++ b/nxt_editor/main_window.py
@@ -122,11 +122,7 @@ def __init__(self, filepath=None, parent=None, start_rpc=False):
         style_file.open(QtCore.QFile.ReadOnly)
         self.stylesheet = str(style_file.readAll())
         self.setStyleSheet(self.stylesheet)
-
-        # fonts
-        font_db = QtGui.QFontDatabase()
-        font_db.addApplicationFont(":fonts/fonts/RobotoMono/RobotoMono-Regular.ttf")
-        font_db.addApplicationFont(":fonts/fonts/Roboto/Roboto-Regular.ttf")
+        self.setFont(FONTS.default_font())
 
         # nxt object in charge of loaded graphs
         self.nxt = Session()
@@ -365,24 +361,23 @@ def decrease_font_size(self):
         self._change_font_size(-1)
 
     def _change_font_size(self, delta, absolute=False, save=True):
-        app = QtWidgets.QApplication.instance()
         if absolute:
             font_size = delta
         else:
-            font_size = app.font().pointSize() + delta
+            font_size = self.font().pointSize() + delta
             self.font_size_changed.emit(delta)
         if save:
             user_dir.user_prefs[user_dir.USER_PREF.FONT_SIZE] = font_size
-        font = QtGui.QFont(FONTS.DEFAULT_FAMILY, font_size)
-        app.setFont(font)
-
-        widgets_with_fonts = ["QMenuBar", "QTabWidget", "QMenu", "QTableView",
-                              "QLineEdit", "QComboBox", "QLabel",
-                              "QPushButton", "QTextEdit", "QWidget",
-                              "QListWidget", "QTabelWidget", "QTreeWidget",
-                              "QSpinBox", "QDoubleSpinBox", "QCheckBox"]
-        for widget in widgets_with_fonts:
-            app.setFont(font, widget)
+        main_font = self.font()
+        main_font.setPointSize(font_size)
+        self.setFont(main_font)
+        self.setUpdatesEnabled(False)
+        for widget in self.findChildren(QtWidgets.QWidget):
+            update_font = widget.font()
+            update_font.setPointSize(font_size)
+            widget.setFont(update_font)
+        self.setUpdatesEnabled(True)
+        QtWidgets.QApplication.processEvents()
 
         new_cb_stylesheet = '''
 QCheckBox::indicator {
diff --git a/nxt_editor/node_graphics_item.py b/nxt_editor/node_graphics_item.py
index 128f4b7..845acb9 100644
--- a/nxt_editor/node_graphics_item.py
+++ b/nxt_editor/node_graphics_item.py
@@ -13,6 +13,7 @@
 import nxt_editor
 from nxt import nxt_path, nxt_node
 from nxt.nxt_layer import LAYERS
+from nxt_editor.constants import FONTS
 from . import colors
 from nxt.stage import INTERNAL_ATTRS
 from .label_edit import NameEditDialog
@@ -57,8 +58,8 @@ def __init__(self, model, node_path, view):
         self.setAcceptHoverEvents(True)
 
         # draw settings
-        self.title_font = QtGui.QFont("Roboto Mono", 14)
-        self.attr_font = QtGui.QFont("Roboto Mono", 9)
+        self.title_font = QtGui.QFont(FONTS.MONOSPACE, 14)
+        self.attr_font = QtGui.QFont(FONTS.MONOSPACE, 9)
         self.title_rect_height = 39
         self.attr_rect_height = 26
         self.attr_rect_opacity = 0.9
diff --git a/nxt_editor/stage_view.py b/nxt_editor/stage_view.py
index d6ad664..d0f8680 100644
--- a/nxt_editor/stage_view.py
+++ b/nxt_editor/stage_view.py
@@ -13,6 +13,7 @@
 # Interal
 import nxt_editor
 from nxt import nxt_node, tokens
+from nxt_editor.constants import FONTS
 from nxt_editor.node_graphics_item import NodeGraphicsItem, NodeGraphicsPlug
 from nxt_editor.connection_graphics_item import AttrConnectionGraphic
 from nxt_editor.dialogs import NxtWarningDialog
@@ -265,14 +266,14 @@ def update_style_sheet(self):
         light_color.setHsv(color_obj.hsvHue(), color_obj.hsvSaturation() * 0.3, color_obj.value())
         style = '''
                 QToolTip {
-                    font-family: Roboto Mono;
+                    font-family: %s;
                     background-color: %s
                 }
 
                 QRubberBand {
                     selection-background-color: %s
                 }
-                ''' % (light_color.name(), layer_color)
+                ''' % (FONTS.DEFAULT_FAMILY, light_color.name(), layer_color)
         self.setStyleSheet(style)
 
     def clear(self):
diff --git a/nxt_editor/version.json b/nxt_editor/version.json
index 1d30317..cffba5b 100644
--- a/nxt_editor/version.json
+++ b/nxt_editor/version.json
@@ -2,6 +2,6 @@
   "EDITOR": {
     "MAJOR": 4,
     "MINOR": 0,
-    "PATCH": 0
+    "PATCH": 1
   }
 }