diff --git a/config.toml b/config.toml
index 75334f5..8a63b92 100644
--- a/config.toml
+++ b/config.toml
@@ -1,4 +1,14 @@
-theme = "onedark"
+# dark themes
+# theme = "ao"
+theme = "dracula_at_night"
+# theme = "molokai"
+# theme = "new_moon"
+# theme = "onedark"
+# theme = "everblush"
+
+# light themes
+# theme = "modus_operandi"
+# theme = "emacs"
 
 [editor]
 true-color = true
@@ -8,18 +18,15 @@ text-width = 120
 end-of-line-diagnostics = "hint"
 
 [editor.inline-diagnostics]
-cursor-line = "warning" # show warnings and errors on the cursorline inline
+cursor-line = "warning"
 
 [editor.cursor-shape]
 insert = "bar"
-#normal = "block"
-#select = "underline"
 
 [editor.statusline]
 left = ["mode", "file-modification-indicator", "file-name", "read-only-indicator", "version-control"]
 center = []
 right = ["diagnostics", "selections", "position"]
-#separator = "│"
 mode.normal = "NORMAL"
 mode.insert = "INSERT"
 mode.select = "SELECT"
@@ -41,7 +48,7 @@ newline = "⏎"
 
 [editor.indent-guides]
 render = true
-character = "┆" # Some characters that work well: "▏", "╎", "┆", "┊", "⸽"
+character = "︳" # Some characters that work well: "︳", "▏", "╎", "┆", "┊", "⸽"
 skip-levels = 1
 
 [editor.soft-wrap]
@@ -50,3 +57,5 @@ wrap-indicator = ""  # set wrap-indicator to "" to hide it
 #max-wrap = 25 # increase value to reduce forced mid-word wrapping
 #max-indent-retain = 0
 
+[keys.normal]
+C-k = ":format"
diff --git a/languages.toml b/languages.toml
index fcd18fe..5be9fe5 100644
--- a/languages.toml
+++ b/languages.toml
@@ -3,6 +3,7 @@ name = "python"
 file-types = ["py"]
 comment-tokens = "#"
 indent = { tab-width = 4, unit = "    "}
+formatter = { command = "ruff", args = ["format"] }
 language-servers = ["pylsp", "python-ruff"]
 roots = ["setup.py", "pyproject.toml"]
 
@@ -18,7 +19,8 @@ args = ["server"]
 name = "go"
 file-types = ["go"]
 comment-tokens = "//"
-indent = { tab-width = 4, unit = "\t"}
+indent = { tab-width = 4, unit = "\t" }
+formatter = { command = "go", args = ["fmt"] }
 language-servers = ["gopls"]
 roots = ["go.mod"]