tmux: increase pane border visibility

etc/tmux.conf

@@ -3,7 +3,8 @@
 # ┗━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┛
 
 # T0B = status bar background
-# T1* = inactive tab, pane borders, hostname and clock,
+# TB* = pane borders
+# T1* = inactive tab, hostname and clock,
 #       inactive window number
 # T2* = active tab, bell flag, active window number
 # TS* = sync-attr colors
@@ -15,14 +16,9 @@ TSB=colour095
 TZF=colour047
 TZB=colour028
 
-# ━━━ gruvbox ━━━
-#T0B=colour237
-#T1F=colour223
-#T1B=colour239
-#T2F=colour239
-#T2B=colour214
-
 # ━━━ catppuccin macchiato (pick one T2B) ━━━
+TBB="#181926" # crust (border background)
+TBF="#6e738d" # overlay0 (border boreground)
 T0B="#24273a" # base
 T1F="#b8c0e0" # subtext1
 T1B="#363a4f" # surface0
@@ -31,8 +27,11 @@ T2F="#363a4f" # surface0
 #T2B="#f5bde6" # pink
 T2B="#c6a0f6" # mauve
 #T2B="#8aadf4" # blue
+#T2B="#ed8796" # red
 
 # ━━━ catppuccin mocha ━━━
+#TBB="#11111b" # crust (border background)
+#TBF="#6c7086" # overlay0 (border boreground)
 #T0B="#1e1e2e" # base
 #T1F="#bac2de" # subtext1
 #T1B="#313244" # surface0