diff --git a/home-manager/modules/colors.nix b/home-manager/modules/colors.nix
index d9a1900..e57babb 100644
--- a/home-manager/modules/colors.nix
+++ b/home-manager/modules/colors.nix
@@ -290,6 +290,13 @@ in
           };
       };
 
+      xdg.configFile."geary/user-style.css".text = ''
+        :root, *:not(a) {
+            background-color: #${cfg.base16.base00} !important;
+            color: #${cfg.base16.base05} !important;
+        }
+      '';
+
       systemd.user.sessionVariables.GTK_THEME = "Generated";
       home.sessionVariables.GTK_THEME = "Generated";
 
diff --git a/home-manager/modules/de2u.nix b/home-manager/modules/de2u.nix
index 3f94e1b..997f3cc 100644
--- a/home-manager/modules/de2u.nix
+++ b/home-manager/modules/de2u.nix
@@ -65,11 +65,16 @@ in
       defaultApplications = {
         "inode/directory" = "org.gnome.Nautilus.desktop";
 
+        "image/*" = "org.gnome.eog.desktop";
+        "video/*" = "org.gnome.Totem.desktop";
+
         "text/html" = "chromium-browser.desktop";
         "x-scheme-handler/http" = "chromium-browser.desktop";
         "x-scheme-handler/https" = "chromium-browser.desktop";
         "x-scheme-handler/about" = "chromium-browser.desktop";
 
+        "x-scheme-handler/mailto" = "org.gnome.Geary.desktop";
+
         "application/zip" = "org.gnome.FileRoller.desktop";
         "application/rar" = "org.gnome.FileRoller.desktop";
         "application/7z" = "org.gnome.FileRoller.desktop";