diff --git a/.aliases b/.aliases
index 2fee121..1267c3f 100644
--- a/.aliases
+++ b/.aliases
@@ -66,3 +66,11 @@ alias glv="vim -c ':DiffviewFileHistory'"
 
 # Start the SSH agent, prompting for your passphrase.
 alias s="start_agent"
+
+# If you connect to remote host with key forwarding, start a tmux session, then
+# disconnect and reconnect, the SSH_AUTH_SOCK file is recreated in a different
+# path but the still-running tmux session is still using the old path. So it
+# behaves like keys are not forwarded. Run this fix to update the path so that
+# the key is forwarded again.
+alias st='[ -n "$TMUX" ] && eval $(tmux show-environment -s SSH_AUTH_SOCK)'
+
diff --git a/.config/nvim/init.lua b/.config/nvim/init.lua
index 0a22e36..a3dfbf4 100644
--- a/.config/nvim/init.lua
+++ b/.config/nvim/init.lua
@@ -16,7 +16,7 @@ require("config.options")
 -- Colorscheme.
 -- Add your favorite colorscheme to lua/plugins/colorscheme.lua (which will be
 -- loaded with `config.lazy` above), and then use it here.
-vim.cmd("colorscheme zenburn")
+vim.cmd("colorscheme zenfade")
 
 -- Uncomment these lines if you use a terminal that does not support true color:
 -- vim.cmd("colorscheme onedark")
diff --git a/.config/nvim/lua/plugins/treesitter.lua b/.config/nvim/lua/plugins/treesitter.lua
index ad84ed7..e503e0f 100644
--- a/.config/nvim/lua/plugins/treesitter.lua
+++ b/.config/nvim/lua/plugins/treesitter.lua
@@ -23,6 +23,7 @@ return {
           "bash",
           "css",
           "dockerfile",
+          "hcl",
           "html",
           "json",
           "lua",
diff --git a/docs/bash.rst b/docs/bash.rst
index 855b774..a83b2c1 100644
--- a/docs/bash.rst
+++ b/docs/bash.rst
@@ -107,6 +107,12 @@ for the commands set for each alias.
     * - ``s``
       - Runs the start_agent function (see :file:`.functions` below)
 
+    * - ``st``
+    - If you connect to a host with SSH key fowarding, start a tmux session,
+      and then disconnect and reconnect to the remote tmux session, the
+      ``SSH_AUTH_SOCKET`` path used by tmux is stale, preventing key fowarding.
+      This refreshes the path so that key forwarding works.
+
     * - ``git-clean-branches-master``
       - Deletes any git branches that have been merged into the master branch
 
diff --git a/docs/changelog.rst b/docs/changelog.rst
index 846b994..6ad36d5 100644
--- a/docs/changelog.rst
+++ b/docs/changelog.rst
@@ -1,6 +1,18 @@
 Changelog
 =========
 
+2025-10-27
+----------
+
+**vim**
+
+- Use `zenfade <https://github.com/daler/zenfade/>`__ as the default colorscheme
+
+**bash**
+
+- New alias, ``st``, for refreshing the SSH_AUTH_SOCKET when reconnecting to
+  a tmux session where you're forwarding SSH keys to the remote host.
+
 2025-08-14
 ----------