I don't really remember the changes I've made :(

README.md

@@ -1,5 +1,5 @@
-Qt-Material
-===========
+# Qt-Material
+
 This is another stylesheet for **PySide6**, **PySide2**, **PyQt5** and **PyQt6**, which looks like Material Design (close enough).
 
 ![GitHub top language](https://img.shields.io/github/languages/top/un-gcpds/qt-material)
@@ -32,6 +32,7 @@ And light:
   * [Change theme in runtime](#change-theme-in-runtime)
   * [Export theme](#export-theme)
   * [Density scale](#density-scale)
+  * [Troubleshoots](#troubleshoots)
 
 ## Install
 
@@ -200,8 +201,13 @@ Then, the current stylesheet can be extended just with:
 
 
 ```python
-apply_stylesheet(app, theme='light_blue.xml')
+apply_stylesheet(app, theme='light_blue.xml', css_file='custom.css')
+```
+
+The stylesheet can also be changed on runtime by:
 
+
+```python
 stylesheet = app.styleSheet()
 with open('custom.css') as file:
     app.setStyleSheet(stylesheet + file.read().format(**os.environ))
@@ -382,7 +388,7 @@ apply_stylesheet(app, 'default', invert_secondary=False, extra=extra)
 
 ### QMenu
 
-`QMenu` has multiple rendering for each Qt backend, and for each operating system. Even can be related with the style, like [fusion](https://doc.qt.io/qt-5/qtquickcontrols2-fusion.html). Then, the `extra` argument also supports`QMenu` parameters to configure this widgest for specific combinations. 
+`QMenu` has multiple rendering for each Qt backend, and for each operating system. Even can be related with the style, like [fusion](https://doc.qt.io/qt-5/qtquickcontrols2-fusion.html). Then, the `extra` argument also supports`QMenu` parameters to configure this widgest for specific combinations. This options are not affected by **density scale**.
 
 
 ```python

docs/source/notebooks/readme.ipynb

@@ -4,8 +4,8 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "Qt-Material\n",
-    "===========\n",
+    "# Qt-Material\n",
+    "\n",
     "This is another stylesheet for **PySide6**, **PySide2**, **PyQt5** and **PyQt6**, which looks like Material Design (close enough).\n",
     "\n",
     "![GitHub top language](https://img.shields.io/github/languages/top/un-gcpds/qt-material)\n",

docs/source/notebooks/readme.rst

@@ -41,6 +41,7 @@ Navigation
 -  `Change theme in runtime <#change-theme-in-runtime>`__
 -  `Export theme <#export-theme>`__
 -  `Density scale <#density-scale>`__
+-  `Troubleshoots <#troubleshoots>`__
 
 Install
 -------
@@ -238,8 +239,12 @@ Then, the current stylesheet can be extended just with:
 
 .. code:: ipython3
 
-    apply_stylesheet(app, theme='light_blue.xml')
-    
+    apply_stylesheet(app, theme='light_blue.xml', css_file='custom.css')
+
+The stylesheet can also be changed on runtime by:
+
+.. code:: ipython3
+
     stylesheet = app.styleSheet()
     with open('custom.css') as file:
         app.setStyleSheet(stylesheet + file.read().format(**os.environ))
@@ -456,7 +461,8 @@ QMenu
 operating system. Even can be related with the style, like
 `fusion <https://doc.qt.io/qt-5/qtquickcontrols2-fusion.html>`__. Then,
 the ``extra`` argument also supports\ ``QMenu`` parameters to configure
-this widgest for specific combinations.
+this widgest for specific combinations. This options are not affected by
+**density scale**.
 
 .. code:: ipython3
 

examples/full_features/main.py

@@ -69,6 +69,7 @@
 # 'padding': '50px 50px 50px 50px',  # top, right, bottom, left
 # }
 
+
 ########################################################################
 class RuntimeStylesheets(QMainWindow, QtStyleTools):
     # ----------------------------------------------------------------------

examples/full_features/main_window.ui

@@ -21,7 +21,7 @@
        <enum>QTabWidget::West</enum>
       </property>
       <property name="currentIndex">
-       <number>0</number>
+       <number>1</number>
       </property>
       <widget class="QWidget" name="tab_11">
        <attribute name="title">
@@ -2980,6 +2980,115 @@ Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor i
    <header location="global">QtWebEngineWidgets/QWebEngineView</header>
   </customwidget>
  </customwidgets>
+ <tabstops>
+  <tabstop>tabWidget_4</tabstop>
+  <tabstop>groupBox</tabstop>
+  <tabstop>pushButton</tabstop>
+  <tabstop>pushButton_3</tabstop>
+  <tabstop>pushButton_6</tabstop>
+  <tabstop>pushButton_7</tabstop>
+  <tabstop>pushButton_11</tabstop>
+  <tabstop>pushButton_5</tabstop>
+  <tabstop>pushButton_4</tabstop>
+  <tabstop>groupBox_2</tabstop>
+  <tabstop>groupBox_3</tabstop>
+  <tabstop>radioButton</tabstop>
+  <tabstop>radioButton_4</tabstop>
+  <tabstop>radioButton_2</tabstop>
+  <tabstop>radioButton_3</tabstop>
+  <tabstop>checkBox</tabstop>
+  <tabstop>checkBox_3</tabstop>
+  <tabstop>checkBox_4</tabstop>
+  <tabstop>checkBox_2</tabstop>
+  <tabstop>pushButton_file_dialog</tabstop>
+  <tabstop>pushButton_folder_dialog</tabstop>
+  <tabstop>tabWidget_3</tabstop>
+  <tabstop>tabWidget</tabstop>
+  <tabstop>horizontalSlider_2</tabstop>
+  <tabstop>verticalSlider_2</tabstop>
+  <tabstop>treeWidget</tabstop>
+  <tabstop>listWidget_2</tabstop>
+  <tabstop>tableWidget</tabstop>
+  <tabstop>tabWidget_2</tabstop>
+  <tabstop>pushButton_18</tabstop>
+  <tabstop>pushButton_20</tabstop>
+  <tabstop>pushButton_19</tabstop>
+  <tabstop>pushButton_23</tabstop>
+  <tabstop>pushButton_22</tabstop>
+  <tabstop>pushButton_21</tabstop>
+  <tabstop>comboBox</tabstop>
+  <tabstop>comboBox_7</tabstop>
+  <tabstop>comboBox_5</tabstop>
+  <tabstop>comboBox_2</tabstop>
+  <tabstop>spinBox</tabstop>
+  <tabstop>doubleSpinBox</tabstop>
+  <tabstop>lineEdit</tabstop>
+  <tabstop>lineEdit_3</tabstop>
+  <tabstop>comboBox_3</tabstop>
+  <tabstop>comboBox_6</tabstop>
+  <tabstop>comboBox_4</tabstop>
+  <tabstop>spinBox_2</tabstop>
+  <tabstop>doubleSpinBox_2</tabstop>
+  <tabstop>lineEdit_2</tabstop>
+  <tabstop>dateEdit_2</tabstop>
+  <tabstop>listWidget</tabstop>
+  <tabstop>textEdit</tabstop>
+  <tabstop>plainTextEdit</tabstop>
+  <tabstop>pushButton_2</tabstop>
+  <tabstop>pushButton_12</tabstop>
+  <tabstop>pushButton_13</tabstop>
+  <tabstop>pushButton_14</tabstop>
+  <tabstop>pushButton_15</tabstop>
+  <tabstop>pushButton_16</tabstop>
+  <tabstop>pushButton_17</tabstop>
+  <tabstop>radioButton_7</tabstop>
+  <tabstop>radioButton_5</tabstop>
+  <tabstop>radioButton_6</tabstop>
+  <tabstop>radioButton_8</tabstop>
+  <tabstop>checkBox_5</tabstop>
+  <tabstop>checkBox_6</tabstop>
+  <tabstop>checkBox_7</tabstop>
+  <tabstop>checkBox_8</tabstop>
+  <tabstop>pushButton_8</tabstop>
+  <tabstop>pushButton_9</tabstop>
+  <tabstop>pushButton_10</tabstop>
+  <tabstop>pushButton_24</tabstop>
+  <tabstop>pushButton_25</tabstop>
+  <tabstop>pushButton_26</tabstop>
+  <tabstop>pushButton_27</tabstop>
+  <tabstop>radioButton_12</tabstop>
+  <tabstop>radioButton_10</tabstop>
+  <tabstop>radioButton_11</tabstop>
+  <tabstop>radioButton_9</tabstop>
+  <tabstop>checkBox_10</tabstop>
+  <tabstop>checkBox_11</tabstop>
+  <tabstop>checkBox_12</tabstop>
+  <tabstop>checkBox_9</tabstop>
+  <tabstop>timeEdit</tabstop>
+  <tabstop>dateEdit</tabstop>
+  <tabstop>dateTimeEdit</tabstop>
+  <tabstop>keySequenceEdit</tabstop>
+  <tabstop>calendarWidget</tabstop>
+  <tabstop>groupBox_7</tabstop>
+  <tabstop>pushButton_28</tabstop>
+  <tabstop>pushButton_32</tabstop>
+  <tabstop>lineEdit_4</tabstop>
+  <tabstop>pushButton_30</tabstop>
+  <tabstop>pushButton_33</tabstop>
+  <tabstop>pushButton_29</tabstop>
+  <tabstop>pushButton_31</tabstop>
+  <tabstop>doubleSpinBox_3</tabstop>
+  <tabstop>timeEdit_2</tabstop>
+  <tabstop>dateTimeEdit_2</tabstop>
+  <tabstop>comboBox_8</tabstop>
+  <tabstop>tabWidget_6</tabstop>
+  <tabstop>fontComboBox</tabstop>
+  <tabstop>tabWidget_5</tabstop>
+  <tabstop>tabWidget_7</tabstop>
+  <tabstop>spinBox_3</tabstop>
+  <tabstop>tableWidget_2</tabstop>
+  <tabstop>lineEdit_5</tabstop>
+ </tabstops>
  <resources/>
  <connections/>
 </ui>

examples/full_features/my_theme.xml

@@ -1,9 +1,9 @@
 <resources>
-    <color name="primaryColor">#ff4081</color>
-    <color name="primaryLightColor">#ff79b0</color>
+    <color name="primaryColor">#00bcd4</color>
+    <color name="primaryLightColor">#62efff</color>
     <color name="secondaryColor">#f5f5f5</color>
-    <color name="secondaryLightColor">#ffffff</color>
-    <color name="secondaryDarkColor">#e6e6e6</color>
+    <color name="secondaryLightColor">#e6e6e6</color>
+    <color name="secondaryDarkColor">#ffffff</color>
     <color name="primaryTextColor">#3c3c3c</color>
     <color name="secondaryTextColor">#555555</color>
   </resources>

qt_material/__init__.py

@@ -344,7 +344,9 @@ def opacity(theme, value=0.5):
 
 
 # ----------------------------------------------------------------------
-def density(value, density_scale, border=0, scale=1, density_interval=4):
+def density(
+    value, density_scale, border=0, scale=1, density_interval=4, min_=4
+):
     """"""
     # https://material.io/develop/web/supporting/density
     if isinstance(value, str) and value.startswith('@'):
@@ -360,8 +362,8 @@ def density(value, density_scale, border=0, scale=1, density_interval=4):
         value + (density_interval * int(density_scale)) - (border * 2)
     ) * scale
 
-    if density < 0:
-        density = 0
+    if density <= 0:
+        density = min_
     return density