[gnome-panel/wip-tasklist] Adwaita: remove box-shadow and background of showdesktop button

[Sebastian Geiger <segeiger src gnome org>]

commit 32f79b2367af49aa65d9b28039348036d0140e28
Author: Sebastian Geiger <sbastig gmx net>
Date:   Sun Mar 1 09:29:40 2020 +0100

    Adwaita: remove box-shadow and background of showdesktop button

 data/theme/Adwaita/gnome-panel-dark.css | 5 +++++
 data/theme/Adwaita/gnome-panel.css      | 5 +++++
 2 files changed, 10 insertions(+)
---
diff --git a/data/theme/Adwaita/gnome-panel-dark.css b/data/theme/Adwaita/gnome-panel-dark.css
index 785da5e4f..326538eca 100644
--- a/data/theme/Adwaita/gnome-panel-dark.css
+++ b/data/theme/Adwaita/gnome-panel-dark.css
@@ -108,3 +108,8 @@ gp-arrow-button:active {
 #tasklist-button:checked label {
   color: #eeeeec;
 }
+
+#showdesktop-button {
+    background: none;
+    box-shadow: none;
+}
diff --git a/data/theme/Adwaita/gnome-panel.css b/data/theme/Adwaita/gnome-panel.css
index ff4439d5b..6f2178baa 100644
--- a/data/theme/Adwaita/gnome-panel.css
+++ b/data/theme/Adwaita/gnome-panel.css
@@ -109,3 +109,8 @@ gp-arrow-button:active {
 #tasklist-button:checked label {
   color: #2e3436;
 }
+
+#showdesktop-button {
+    background: none;
+    box-shadow: none;
+}