8 files changed, 81 insertions, 33 deletions
diff --git a/common/gtk-3.0/3.20/gtk-dark.css b/common/gtk-3.0/3.20/gtk-dark.css
index e3de3a4..3391f41 100644
--- a/common/gtk-3.0/3.20/gtk-dark.css
+++ b/common/gtk-3.0/3.20/gtk-dark.css
@@ -2326,9 +2326,11 @@ frame > border,
   padding: 0;
   border-radius: 0;
   border: 1px solid #001317; }
-  frame > border.flat,
-  .frame.flat {
-    border-style: none; }
+
+frame.flat > border,
+frame > border.flat,
+.frame.flat {
+  border-style: none; }
 
 scrolledwindow viewport.frame {
   border-style: none; }
@@ -2827,8 +2829,9 @@ popover.background.touch-selection, .csd popover.background.touch-selection {
 button.circular, button.nautilus-circular-button.image-button,
 button.circular-button {
   padding: 0;
-  min-width: 26px;
-  min-height: 26px;
+  min-width: 16px;
+  min-height: 24px;
+  padding: 2px 6px;
   border-radius: 50%;
   -gtk-outline-radius: 50%; }
   button.circular label, button.nautilus-circular-button.image-button label,
@@ -3401,6 +3404,9 @@ button.documents-favorite:active:hover {
 .tr-workarea overshoot {
   border-color: transparent; }
 
+.atril-window .primary-toolbar toolbar, .atril-window .primary-toolbar .inline-toolbar {
+  background: none; }
+
 #gf-bubble, #gf-bubble.solid,
 #gf-osd-window,
 #gf-osd-window.solid,
diff --git a/common/gtk-3.0/3.20/gtk-darker.css b/common/gtk-3.0/3.20/gtk-darker.css
index c579aa7..29f9c4d 100644
--- a/common/gtk-3.0/3.20/gtk-darker.css
+++ b/common/gtk-3.0/3.20/gtk-darker.css
@@ -2325,9 +2325,11 @@ frame > border,
   padding: 0;
   border-radius: 0;
   border: 1px solid #dcdfe3; }
-  frame > border.flat,
-  .frame.flat {
-    border-style: none; }
+
+frame.flat > border,
+frame > border.flat,
+.frame.flat {
+  border-style: none; }
 
 scrolledwindow viewport.frame {
   border-style: none; }
@@ -2826,8 +2828,9 @@ popover.background.touch-selection, .csd popover.background.touch-selection {
 button.circular, button.nautilus-circular-button.image-button,
 button.circular-button {
   padding: 0;
-  min-width: 26px;
-  min-height: 26px;
+  min-width: 16px;
+  min-height: 24px;
+  padding: 2px 6px;
   border-radius: 50%;
   -gtk-outline-radius: 50%; }
   button.circular label, button.nautilus-circular-button.image-button label,
@@ -3400,6 +3403,9 @@ button.documents-favorite:active:hover {
 .tr-workarea overshoot {
   border-color: transparent; }
 
+.atril-window .primary-toolbar toolbar, .atril-window .primary-toolbar .inline-toolbar {
+  background: none; }
+
 #gf-bubble, #gf-bubble.solid,
 #gf-osd-window,
 #gf-osd-window.solid,
diff --git a/common/gtk-3.0/3.20/gtk-solid-dark.css b/common/gtk-3.0/3.20/gtk-solid-dark.css
index f215a35..84bd02f 100644
--- a/common/gtk-3.0/3.20/gtk-solid-dark.css
+++ b/common/gtk-3.0/3.20/gtk-solid-dark.css
@@ -2326,9 +2326,11 @@ frame > border,
   padding: 0;
   border-radius: 0;
   border: 1px solid #001317; }
-  frame > border.flat,
-  .frame.flat {
-    border-style: none; }
+
+frame.flat > border,
+frame > border.flat,
+.frame.flat {
+  border-style: none; }
 
 scrolledwindow viewport.frame {
   border-style: none; }
@@ -2827,8 +2829,9 @@ popover.background.touch-selection, .csd popover.background.touch-selection {
 button.circular, button.nautilus-circular-button.image-button,
 button.circular-button {
   padding: 0;
-  min-width: 26px;
-  min-height: 26px;
+  min-width: 16px;
+  min-height: 24px;
+  padding: 2px 6px;
   border-radius: 50%;
   -gtk-outline-radius: 50%; }
   button.circular label, button.nautilus-circular-button.image-button label,
@@ -3401,6 +3404,9 @@ button.documents-favorite:active:hover {
 .tr-workarea overshoot {
   border-color: transparent; }
 
+.atril-window .primary-toolbar toolbar, .atril-window .primary-toolbar .inline-toolbar {
+  background: none; }
+
 #gf-bubble, #gf-bubble.solid,
 #gf-osd-window,
 #gf-osd-window.solid,
diff --git a/common/gtk-3.0/3.20/gtk-solid-darker.css b/common/gtk-3.0/3.20/gtk-solid-darker.css
index 1e912c3..38a80ec 100644
--- a/common/gtk-3.0/3.20/gtk-solid-darker.css
+++ b/common/gtk-3.0/3.20/gtk-solid-darker.css
@@ -2325,9 +2325,11 @@ frame > border,
   padding: 0;
   border-radius: 0;
   border: 1px solid #dcdfe3; }
-  frame > border.flat,
-  .frame.flat {
-    border-style: none; }
+
+frame.flat > border,
+frame > border.flat,
+.frame.flat {
+  border-style: none; }
 
 scrolledwindow viewport.frame {
   border-style: none; }
@@ -2826,8 +2828,9 @@ popover.background.touch-selection, .csd popover.background.touch-selection {
 button.circular, button.nautilus-circular-button.image-button,
 button.circular-button {
   padding: 0;
-  min-width: 26px;
-  min-height: 26px;
+  min-width: 16px;
+  min-height: 24px;
+  padding: 2px 6px;
   border-radius: 50%;
   -gtk-outline-radius: 50%; }
   button.circular label, button.nautilus-circular-button.image-button label,
@@ -3400,6 +3403,9 @@ button.documents-favorite:active:hover {
 .tr-workarea overshoot {
   border-color: transparent; }
 
+.atril-window .primary-toolbar toolbar, .atril-window .primary-toolbar .inline-toolbar {
+  background: none; }
+
 #gf-bubble, #gf-bubble.solid,
 #gf-osd-window,
 #gf-osd-window.solid,
diff --git a/common/gtk-3.0/3.20/gtk-solid.css b/common/gtk-3.0/3.20/gtk-solid.css
index 821381f..c33efb8 100644
--- a/common/gtk-3.0/3.20/gtk-solid.css
+++ b/common/gtk-3.0/3.20/gtk-solid.css
@@ -2329,9 +2329,11 @@ frame > border,
   padding: 0;
   border-radius: 0;
   border: 1px solid #dcdfe3; }
-  frame > border.flat,
-  .frame.flat {
-    border-style: none; }
+
+frame.flat > border,
+frame > border.flat,
+.frame.flat {
+  border-style: none; }
 
 scrolledwindow viewport.frame {
   border-style: none; }
@@ -2830,8 +2832,9 @@ popover.background.touch-selection, .csd popover.background.touch-selection {
 button.circular, button.nautilus-circular-button.image-button,
 button.circular-button {
   padding: 0;
-  min-width: 26px;
-  min-height: 26px;
+  min-width: 16px;
+  min-height: 24px;
+  padding: 2px 6px;
   border-radius: 50%;
   -gtk-outline-radius: 50%; }
   button.circular label, button.nautilus-circular-button.image-button label,
@@ -3404,6 +3407,9 @@ button.documents-favorite:active:hover {
 .tr-workarea overshoot {
   border-color: transparent; }
 
+.atril-window .primary-toolbar toolbar, .atril-window .primary-toolbar .inline-toolbar {
+  background: none; }
+
 #gf-bubble, #gf-bubble.solid,
 #gf-osd-window,
 #gf-osd-window.solid,
diff --git a/common/gtk-3.0/3.20/gtk.css b/common/gtk-3.0/3.20/gtk.css
index 6bc09c3..ba3b159 100644
--- a/common/gtk-3.0/3.20/gtk.css
+++ b/common/gtk-3.0/3.20/gtk.css
@@ -2329,9 +2329,11 @@ frame > border,
   padding: 0;
   border-radius: 0;
   border: 1px solid #dcdfe3; }
-  frame > border.flat,
-  .frame.flat {
-    border-style: none; }
+
+frame.flat > border,
+frame > border.flat,
+.frame.flat {
+  border-style: none; }
 
 scrolledwindow viewport.frame {
   border-style: none; }
@@ -2830,8 +2832,9 @@ popover.background.touch-selection, .csd popover.background.touch-selection {
 button.circular, button.nautilus-circular-button.image-button,
 button.circular-button {
   padding: 0;
-  min-width: 26px;
-  min-height: 26px;
+  min-width: 16px;
+  min-height: 24px;
+  padding: 2px 6px;
   border-radius: 50%;
   -gtk-outline-radius: 50%; }
   button.circular label, button.nautilus-circular-button.image-button label,
@@ -3404,6 +3407,9 @@ button.documents-favorite:active:hover {
 .tr-workarea overshoot {
   border-color: transparent; }
 
+.atril-window .primary-toolbar toolbar, .atril-window .primary-toolbar .inline-toolbar {
+  background: none; }
+
 #gf-bubble, #gf-bubble.solid,
 #gf-osd-window,
 #gf-osd-window.solid,
diff --git a/common/gtk-3.0/3.20/sass/_applications.scss b/common/gtk-3.0/3.20/sass/_applications.scss
index 9697e9d..99c0334 100644
--- a/common/gtk-3.0/3.20/sass/_applications.scss
+++ b/common/gtk-3.0/3.20/sass/_applications.scss
@@ -518,6 +518,13 @@ button.documents-favorite:active:hover {
 }
 
 //
+// Atril (MATE pdf viewer)
+//
+.atril-window .primary-toolbar toolbar {
+  background: none;
+}
+
+//
 // Gnome Flashback
 //
 #gf-bubble,
diff --git a/common/gtk-3.0/3.20/sass/_common.scss b/common/gtk-3.0/3.20/sass/_common.scss
index 9671ae6..8f97699 100644
--- a/common/gtk-3.0/3.20/sass/_common.scss
+++ b/common/gtk-3.0/3.20/sass/_common.scss
@@ -2402,8 +2402,12 @@ frame > border,
   padding: 0;
   border-radius: 0;
   border: 1px solid $borders_color;
+}
 
-  &.flat { border-style: none; }
+frame.flat > border,
+frame > border.flat,
+.frame.flat {
+  border-style: none;
 }
 
 scrolledwindow {
@@ -3027,8 +3031,9 @@ colorchooser .popover.osd { border-radius: 3px; }
 button.circular,
 button.circular-button {
   padding: 0;
-  min-width: 26px;
-  min-height: 26px;
+  min-width: 16px;
+  min-height: 24px;
+  padding: 2px 6px;
   border-radius: 50%;
   -gtk-outline-radius: 50%;