diff --git a/config/nvim/lua/plugins/git.lua b/config/nvim/lua/plugins/git.lua
index f8dda3f..5c9c98a 100644
--- a/config/nvim/lua/plugins/git.lua
+++ b/config/nvim/lua/plugins/git.lua
@@ -82,7 +82,7 @@ return {
                 hide_prefix = true,
                 highlights = {
                     gutter = true,
-                    blend_alpha = 0.4,
+                    blend_alpha = 0.5,
                     intra = { enabled = true },
                 },
             }
diff --git a/home/tmux.nix b/home/tmux.nix
index 8f9244b..e4238be 100644
--- a/home/tmux.nix
+++ b/home/tmux.nix
@@ -85,7 +85,8 @@
       BLACK="#1d2021"
       DARK_GRAY="#282828"
       LIGHT_GRAY="#4F4946"
-      BG="#1d2021"
+      # Match Ghostty theme "Gruvbox Material Dark" (see programs.ghostty.settings.theme)
+      BG="#282828"
       FG="#d4be98"
 
       HALF_ROUND_OPEN="#(printf '\uE0B2')"