Update for combobox arrow

Fixed combobox arrows so they would appear accurately scaled (also for Libreoffice too.) Applies to GTK3.22 and GTK3.24. This does not apply for the Cinnamon desktop, but only GTK applications.
Readjusted the scaling of treeview arrows so they should appear more defined and not blurry.
Disabled backdrop theming for toolbar buttons since it not necessary for this theme.

Theme/Chicago95/gtk-3.0/gtk-widgets.css

@@ -12,7 +12,7 @@
     -GtkTextView-error-underline-color: @error_color;
     -GtkToolButton-icon-spacing: 6;
     -GtkToolItemGroup-expander-size: 8;
-    -GtkTreeView-expander-size: 8;
+    -GtkTreeView-expander-size: 18;
     -GtkWindow-resize-grip-default: true;
     -GtkWindow-resize-grip-height: 16;
     -GtkWindow-resize-grip-width: 16;
@@ -223,7 +223,8 @@ button {
     -gtk-icon-shadow: none;
     transition: none;
     -gtk-icon-effect: none; }
-    button.sidebar-button:backdrop label, button.sidebar-button:backdrop,
+    /* The commented option below can change the theme of a button in a non-active (non-focused) window. Currently leaving it as an option, but disabled.*/
+    /* button.sidebar-button:backdrop label, button.sidebar-button:backdrop,
     button:backdrop.flat label,
     button:backdrop.flat,
     button:backdrop label,
@@ -284,8 +285,7 @@ button {
         button:backdrop:disabled:active label,
         button:backdrop:disabled:checked label {
           color: @font_color; }
-  /* The commented option below can change the theme of a button in a non-active (non-focused) window. Currently leaving it as an option, but disabled.*/
-  /*button.sidebar-button:backdrop, button.sidebar-button:disabled, button.sidebar-button:backdrop:disabled,
+  button.sidebar-button:backdrop, button.sidebar-button:disabled, button.sidebar-button:backdrop:disabled,
   button.flat:backdrop,
   button.flat:disabled,
   button.flat:backdrop:disabled {
@@ -323,18 +323,7 @@ button {
         color: @font_color; }
   button.image-button {
     min-height: 16px;
-    min-width: 16px;
- /*   padding-left: 4px;
-    padding-right: 4px;*/ }
- /* button.text-button {*/
- /*   padding-left: 8px;
-    padding-right: 8px; }*/
- /* button.text-button.image-button {*/
- /*   padding-left: 4px;
-    padding-right: 4px; }*/
- /*   button.text-button.image-button label {*/
- /*     padding-left: 4px;
-      padding-right: 4px; }*/
+    min-width: 16px; }
   combobox:drop(active) button.combo,
   button:drop(active) {
     border-top-color: @border_dark;
@@ -557,7 +546,7 @@ button.osd {
   .stack-switcher > button.needs-attention:active > image, .stack-switcher > button.needs-attention:checked > label,
   .stack-switcher > button.needs-attention:checked > image {
     background-image: none; }
-.inline-toolbar button, .inline-toolbar button:backdrop, .primary-toolbar button, .primary-toolbar button:hover {
+.inline-toolbar button, .primary-toolbar button, .primary-toolbar button:hover, .primary-toolbar button:hover:backdrop {
   margin: 1px;
   border-radius: 0px;
   border-left: 1px solid @bg_bright;
@@ -571,12 +560,12 @@ button.osd {
     border-bottom: 1px solid @bg_bright;
     border-right: 1px solid @bg_bright;
     box-shadow: inset 1px 1px @bg_shade; }
-  .inline-toolbar button:disabled, .primary-toolbar button:disabled {
+  .inline-toolbar button:disabled, .primary-toolbar button:disabled, .primary-toolbar button:disabled:backdrop {
     border-left: 1px solid @bg_shade;
     border-top: 1px solid @bg_shade;
     border-bottom: 1px solid @bg_bright;
     border-right: 1px solid @bg_bright; }
-.primary-toolbar button {
+.primary-toolbar button, .inline-toolbar button:backdrop, .primary-toolbar button:backdrop {
   -gtk-icon-shadow: none;
   border-color: transparent;
   box-shadow: none; }
@@ -1153,14 +1142,6 @@ combobox {
     outline: none; }
   combobox button.combo {
     margin: 2px; }
-  combobox button arrow {
-    padding: 0px;
-    margin: 0px;
-    min-width: 16px;
-    min-height: 16px;
-    border: 1px solid transparent; }
-    combobox button:disabled arrow {
-      background-image: url("assets/arrow-down-disabled.png"); }
   combobox entry, entry {
     min-width: 20px;
     min-height: 16px;
@@ -1171,12 +1152,26 @@ combobox {
     box-shadow: none; }
   combobox cellview {
     padding-left: 2px; }
+
+/* The following is specifically for Lireoffice comboboxes. This will affect the rest of the theme too. */
   combobox arrow {
-    -gtk-icon-source: url("assets/arrow-down_test.png");
-    -gtk-icon-transform: scale(0.39); }
+    -gtk-icon-source: url("assets/vcl-combobox-arrow-down.png");
+    min-width: 16px;
+    min-height: 16px; } /* 16px icons only or else Libreoffice will distort the icon. */
     combobox:disabled arrow {
-      -gtk-icon-source: url("assets/arrow-down-disabled.png");
-      -gtk-icon-transform: scale(0.5); }
+    -gtk-icon-source: url("assets/vcl-combobox-arrow-down-disabled.png");
+    min-width: 16px;
+    min-height: 16px; }
+/* The following should apply for the rest of the theme. This won't affect Libreoffice comboboxes. */
+  combobox > box > button > box > arrow {
+    -gtk-icon-source: url("assets/combobox-arrow-down.png");
+    min-width: 16px;
+    min-height: 21px; } /* 21px height seems to be the absolute minimum GTK will allow for SOME combobox arrow icons. */
+    combobox:disabled > box > button > box > arrow {
+      -gtk-icon-source: url("assets/combobox-arrow-down-disabled.png");
+      min-width: 16px;
+      min-height: 21px; }
+
   combobox window menu {
     background-color: @bg_color;
     color: @text_color;
@@ -1390,7 +1385,7 @@ expander arrow {
   min-height: 16px; }
 
 treeview.view.expander {
-  -gtk-icon-transform: scale(1.7); } /* NOTE: This is specific for GTK3.22! */
+  -gtk-icon-transform: scale(0.55); } /* NOTE: This sets the treeview expander arrow size within the expander button area. */
 
 /************
  * iconview *
@@ -1549,7 +1544,7 @@ menu separator {
 * Menu arrows*
   ************/
 arrow {
-    background-image: url("assets/arrow-down.png");
+/*    background-image: url("assets/arrow-down.png");*/
     background-position: center;
     background-repeat: no-repeat;
     background-size: 10px;
@@ -2601,7 +2596,7 @@ toolbar button {
   margin: 1px;
   min-width: 16px;
   min-height: 16px;
-  padding: 2px;
+  padding: 1px;
   border-color: @bg_bright @bg_dark @bg_dark @bg_bright;
   box-shadow: inset -1px -1px @bg_shade; }
   toolbar > toolbutton > button:disabled {
@@ -2917,10 +2912,6 @@ grid viewport box box textview {
     background-color: white;
 }
 
-grid viewport box {
-    background-color: white;
-}
-
 /* printdialog */
 
 printdialog notebook {

Theme/Chicago95/gtk-3.24/gtk-widgets.css

@@ -12,7 +12,7 @@
     -GtkTextView-error-underline-color: @error_color;
     -GtkToolButton-icon-spacing: 6;
     -GtkToolItemGroup-expander-size: 8;
-    -GtkTreeView-expander-size: 8;
+    -GtkTreeView-expander-size: 18;
     -GtkWindow-resize-grip-default: true;
     -GtkWindow-resize-grip-height: 16;
     -GtkWindow-resize-grip-width: 16;
@@ -223,7 +223,8 @@ button {
     -gtk-icon-shadow: none;
     transition: none;
     -gtk-icon-effect: none; }
-    button.sidebar-button:backdrop label, button.sidebar-button:backdrop,
+    /* The commented option below can change the theme of a button in a non-active (non-focused) window. Currently leaving it as an option, but disabled.*/
+    /* button.sidebar-button:backdrop label, button.sidebar-button:backdrop,
     button:backdrop.flat label,
     button:backdrop.flat,
     button:backdrop label,
@@ -284,8 +285,7 @@ button {
         button:backdrop:disabled:active label,
         button:backdrop:disabled:checked label {
           color: @font_color; }
-  /* The commented option below can change the theme of a button in a non-active (non-focused) window. Currently leaving it as an option, but disabled.*/
-  /*button.sidebar-button:backdrop, button.sidebar-button:disabled, button.sidebar-button:backdrop:disabled,
+  button.sidebar-button:backdrop, button.sidebar-button:disabled, button.sidebar-button:backdrop:disabled,
   button.flat:backdrop,
   button.flat:disabled,
   button.flat:backdrop:disabled {
@@ -323,18 +323,7 @@ button {
         color: @font_color; }
   button.image-button {
     min-height: 16px;
-    min-width: 16px;
- /*   padding-left: 4px;
-    padding-right: 4px;*/ }
- /* button.text-button {*/
- /*   padding-left: 8px;
-    padding-right: 8px; }*/
- /* button.text-button.image-button {*/
- /*   padding-left: 4px;
-    padding-right: 4px; }*/
- /*   button.text-button.image-button label {*/
- /*     padding-left: 4px;
-      padding-right: 4px; }*/
+    min-width: 16px; }
   combobox:drop(active) button.combo,
   button:drop(active) {
     border-top-color: @border_dark;
@@ -557,7 +546,7 @@ button.osd {
   .stack-switcher > button.needs-attention:active > image, .stack-switcher > button.needs-attention:checked > label,
   .stack-switcher > button.needs-attention:checked > image {
     background-image: none; }
-.inline-toolbar button, .inline-toolbar button:backdrop {
+.inline-toolbar button, .primary-toolbar button, .primary-toolbar button:hover, .primary-toolbar button:hover:backdrop {
   margin: 1px;
   border-radius: 0px;
   border-left: 1px solid @bg_bright;
@@ -565,19 +554,21 @@ button.osd {
   border-bottom: 1px solid @bg_shade;
   border-right: 1px solid @bg_shade;
   box-shadow: none; }
-  .inline-toolbar button:active {
+  .inline-toolbar button:active, .primary-toolbar button:active {
     border-left: 1px solid @bg_dark;
     border-top: 1px solid @bg_dark;
     border-bottom: 1px solid @bg_bright;
     border-right: 1px solid @bg_bright;
     box-shadow: inset 1px 1px @bg_shade; }
-  .inline-toolbar button:disabled {
+  .inline-toolbar button:disabled, .primary-toolbar button:disabled, .primary-toolbar button:disabled:backdrop {
     border-left: 1px solid @bg_shade;
     border-top: 1px solid @bg_shade;
     border-bottom: 1px solid @bg_bright;
     border-right: 1px solid @bg_bright; }
-.primary-toolbar button {
-  -gtk-icon-shadow: none; }
+.primary-toolbar button, .inline-toolbar button:backdrop, .primary-toolbar button:backdrop {
+  -gtk-icon-shadow: none;
+  border-color: transparent;
+  box-shadow: none; }
 
 toolbar.inline-toolbar toolbutton > button.flat,
 toolbar.inline-toolbar toolbutton:backdrop > button.flat, .linked:not(.vertical) > spinbutton:not(.vertical), .linked:not(.vertical) >
@@ -1151,14 +1142,6 @@ combobox {
     outline: none; }
   combobox button.combo {
     margin: 2px; }
-  combobox button arrow {
-    padding: 0px;
-    margin: 0px;
-    min-width: 16px;
-    min-height: 16px;
-    border: 1px solid transparent; }
-    combobox button:disabled arrow {
-      background-image: url("assets/arrow-down-disabled.png"); }
   combobox entry, entry {
     min-width: 20px;
     min-height: 16px;
@@ -1169,12 +1152,26 @@ combobox {
     box-shadow: none; }
   combobox cellview {
     padding-left: 2px; }
+
+/* The following is specifically for Lireoffice comboboxes. This will affect the rest of the theme too. */
   combobox arrow {
-    -gtk-icon-source: url("assets/arrow-down_test.png");
-    -gtk-icon-transform: scale(0.39); }
+    -gtk-icon-source: url("assets/vcl-combobox-arrow-down.png");
+    min-width: 16px;
+    min-height: 16px; } /* 16px icons only or else Libreoffice will distort the icon. */
     combobox:disabled arrow {
-      -gtk-icon-source: url("assets/arrow-down-disabled.png");
-      -gtk-icon-transform: scale(0.5); }
+    -gtk-icon-source: url("assets/vcl-combobox-arrow-down-disabled.png");
+    min-width: 16px;
+    min-height: 16px; }
+/* The following should apply for the rest of the theme. This won't affect Libreoffice comboboxes. */
+  combobox > box > button > box > arrow {
+    -gtk-icon-source: url("assets/combobox-arrow-down.png");
+    min-width: 16px;
+    min-height: 21px; } /* 21px height seems to be the absolute minimum GTK will allow for SOME combobox arrow icons. */
+    combobox:disabled > box > button > box > arrow {
+      -gtk-icon-source: url("assets/combobox-arrow-down-disabled.png");
+      min-width: 16px;
+      min-height: 21px; }
+
   combobox window menu {
     background-color: @bg_color;
     color: @text_color;
@@ -1388,7 +1385,7 @@ expander arrow {
   min-height: 16px; }
 
 treeview.view.expander {
-  -gtk-icon-transform: scale(2); } /* NOTE: This is specific for GTK3.24! */
+  -gtk-icon-transform: scale(0.55); } /* NOTE: This sets the treeview expander arrow size within the expander button area. */
 
 /************
  * iconview *
@@ -1547,7 +1544,7 @@ menu separator {
 * Menu arrows*
   ************/
 arrow {
-    background-image: url("assets/arrow-down.png");
+/*    background-image: url("assets/arrow-down.png");*/
     background-position: center;
     background-repeat: no-repeat;
     background-size: 10px;
@@ -2599,7 +2596,7 @@ toolbar button {
   margin: 1px;
   min-width: 16px;
   min-height: 16px;
-  padding: 2px;
+  padding: 1px;
   border-color: @bg_bright @bg_dark @bg_dark @bg_bright;
   box-shadow: inset -1px -1px @bg_shade; }
   toolbar > toolbutton > button:disabled {
@@ -2915,10 +2912,6 @@ grid viewport box box textview {
     background-color: white;
 }
 
-grid viewport box {
-    background-color: white;
-}
-
 /* printdialog */
 
 printdialog notebook {