fix: bar separators use FloatBorder (bright), 3-row bars frame both edges

User kept complaining the status bar's separator looked dark while
dapui's pane dividers looked bright. I had WinSeparator vs
FloatBorder backwards.

Actual values in nightfox (and most dark colorschemes):
  WinSeparator.fg = #131721 (very dark — what I was using, the dark
                             look user objected to)
  FloatBorder.fg  = #71839B (bright grey — what user wants, matches
                             WinBar.fg which is what dapui's pane
                             header text renders in)

Switched TurboDebugBarSeparator back to FloatBorder. Also restored
3-row bars for BOTH status and control bars so each has separators
on BOTH top AND bottom edges in the bright color. Symmetric framing
top to bottom of the debug UI.

Also: Watches pane icon switched from 👁️ (eye, U+1F441+VS16) to 👀
(eyes, U+1F440) per user preference. Supplementary-plane emoji with
no VS16 dependency, always renders as color emoji.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

lua/turbo-debug/mode.lua

@@ -54,7 +54,7 @@ local ICON = {
 
   -- pane-title emoji (supplementary plane — reliably colorful)
   scopes      = "\xf0\x9f\x94\x8e",             -- 🔎 magnifier (U+1F50E)
-  watches     = "\xf0\x9f\x91\x81\xef\xb8\x8f", -- 👁️ eye (U+1F441 + VS16)
+  watches     = "\xf0\x9f\x91\x80",             -- 👀 eyes (U+1F440)
   stacks      = "\xf0\x9f\x93\x9a",             -- 📚 books (U+1F4DA)
   breakpoints = "\xf0\x9f\x94\xb4",             -- 🔴 red circle (U+1F534)
   terminal    = "\xf0\x9f\x92\xbb",             -- 💻 laptop (U+1F4BB)
@@ -134,11 +134,12 @@ local function define_highlights()
   -- default background). StatusLine was too dark and created a visible
   -- seam between the bar and the surrounding panes.
   hl(0, "TurboDebugBar",            { default = true, link = "Normal" })
-  -- WinSeparator (not FloatBorder) so the bar edges match the dividers
+  -- FloatBorder — the bright grey most colorschemes use for chrome
-  -- dapui draws between its own panes. FloatBorder tends to read darker
+  -- dividers (nightfox: #71839B, same as WinBar.fg so dapui's pane
-  -- than WinSeparator in most colorschemes, which created a visible
+  -- header text and our bar separators match). WinSeparator is
-  -- mismatch between our bar's bottom and the adjacent dapui pane top.
+  -- typically much darker (nightfox: #131721) which produced the
-  hl(0, "TurboDebugBarSeparator",   { default = true, link = "WinSeparator" })
+  -- visible "dark line vs bright line" mismatch the user kept hitting.
+  hl(0, "TurboDebugBarSeparator",   { default = true, link = "FloatBorder" })
   -- Control labels: link to Normal so the text blends with the bar's
   -- Normal-bg surface. StatusLine bg was creating a visible color patch
   -- behind each label. The key letter still pops via TurboDebugBarKey
@@ -281,18 +282,22 @@ local function render_sbar()
   local pad_right = remain - pad_left
   local content_line = brand_text .. string.rep(" ", pad_left) .. status_msg .. string.rep(" ", pad_right) .. state_chip
 
-  -- 2 rows: sep / content. No bottom separator — dapui renders its own
+  -- 3 rows: sep / content / sep. Both separators use
-  -- pane border above its top elements, which serves as our bottom
+  -- TurboDebugBarSeparator (→ FloatBorder, the bright grey) so the
-  -- edge. Drawing ours too was producing two stacked separator rows.
+  -- bar is visibly framed top and bottom matching the window-
+  -- separator color the rest of the dapui chrome uses.
   vim.bo[sbar_buf].modifiable = true
-  vim.api.nvim_buf_set_lines(sbar_buf, 0, -1, false, { sep, content_line })
+  vim.api.nvim_buf_set_lines(sbar_buf, 0, -1, false, { sep, content_line, sep })
   vim.bo[sbar_buf].modifiable = false
 
   vim.api.nvim_buf_clear_namespace(sbar_buf, bar_ns, 0, -1)
   pcall(vim.api.nvim_buf_set_extmark, sbar_buf, bar_ns, 0, 0, {
     end_row = 0, end_col = #sep, hl_group = "TurboDebugBarSeparator",
   })
-  -- content
+  pcall(vim.api.nvim_buf_set_extmark, sbar_buf, bar_ns, 2, 0, {
+    end_row = 2, end_col = #sep, hl_group = "TurboDebugBarSeparator",
+  })
+  -- content row
   pcall(vim.api.nvim_buf_set_extmark, sbar_buf, bar_ns, 1, 0, {
     end_row = 1, end_col = #brand_text, hl_group = "TurboDebugBarBrand",
   })
@@ -371,35 +376,37 @@ local function render_cbar()
   if ctrl_pad_right < 1 then ctrl_pad_right = 1 end
   local content_line = string.rep(" ", ctrl_pad_left) .. controls_text .. string.rep(" ", ctrl_pad_right) .. help_text
 
-  -- 2 rows: content / sep  (no top separator — the source/dapui area
+  -- 3 rows: sep / content / sep. Both separators use the bright
-  -- above has its own pane borders as the visual break)
+  -- FloatBorder color so the control bar is visibly framed top AND
+  -- bottom, matching the status bar treatment.
   vim.bo[cbar_buf].modifiable = true
-  vim.api.nvim_buf_set_lines(cbar_buf, 0, -1, false, { content_line, sep })
+  vim.api.nvim_buf_set_lines(cbar_buf, 0, -1, false, { sep, content_line, sep })
   vim.bo[cbar_buf].modifiable = false
 
   vim.api.nvim_buf_clear_namespace(cbar_buf, bar_ns, 0, -1)
-  -- bottom separator (on row 1 now since content is on row 0)
+  pcall(vim.api.nvim_buf_set_extmark, cbar_buf, bar_ns, 0, 0, {
-  pcall(vim.api.nvim_buf_set_extmark, cbar_buf, bar_ns, 1, 0, {
+    end_row = 0, end_col = #sep, hl_group = "TurboDebugBarSeparator",
-    end_row = 1, end_col = #sep, hl_group = "TurboDebugBarSeparator",
+  })
+  pcall(vim.api.nvim_buf_set_extmark, cbar_buf, bar_ns, 2, 0, {
+    end_row = 2, end_col = #sep, hl_group = "TurboDebugBarSeparator",
   })
 
-  -- control labels on row 0 (content row)
+  -- control labels on row 1 (content row)
   local ctrl_byte_offset = ctrl_pad_left
   for _, span in ipairs(ctrl_spans) do
-    pcall(vim.api.nvim_buf_set_extmark, cbar_buf, bar_ns, 0, ctrl_byte_offset + span[1], {
+    pcall(vim.api.nvim_buf_set_extmark, cbar_buf, bar_ns, 1, ctrl_byte_offset + span[1], {
-      end_row = 0, end_col = ctrl_byte_offset + span[2], hl_group = span[3],
+      end_row = 1, end_col = ctrl_byte_offset + span[2], hl_group = span[3],
     })
   end
   for _, span in ipairs(ctrl_key_spans) do
-    pcall(vim.api.nvim_buf_set_extmark, cbar_buf, bar_ns, 0, ctrl_byte_offset + span[1], {
+    pcall(vim.api.nvim_buf_set_extmark, cbar_buf, bar_ns, 1, ctrl_byte_offset + span[1], {
-      end_row = 0, end_col = ctrl_byte_offset + span[2], hl_group = "TurboDebugBarKey",
+      end_row = 1, end_col = ctrl_byte_offset + span[2], hl_group = "TurboDebugBarKey",
     })
   end
 
-  -- help (right-anchored) on row 0
   local help_byte_start = #content_line - #help_text
-  pcall(vim.api.nvim_buf_set_extmark, cbar_buf, bar_ns, 0, help_byte_start, {
+  pcall(vim.api.nvim_buf_set_extmark, cbar_buf, bar_ns, 1, help_byte_start, {
-    end_row = 0, end_col = #content_line, hl_group = "TurboDebugBarCtrl",
+    end_row = 1, end_col = #content_line, hl_group = "TurboDebugBarCtrl",
   })
 
   cbar_zones = {}
@@ -408,12 +415,12 @@ local function render_cbar()
     local byte_end = ctrl_byte_offset + z[2]
     local dcol_start = vim.fn.strdisplaywidth(content_line:sub(1, byte_start))
     local dcol_end   = vim.fn.strdisplaywidth(content_line:sub(1, byte_end))
-    -- content is on buffer row 0 = window line 1
+    -- content is on buffer row 1 = window line 2
-    cbar_zones[#cbar_zones + 1] = { 1, dcol_start, dcol_end, z[3] }
+    cbar_zones[#cbar_zones + 1] = { 2, dcol_start, dcol_end, z[3] }
   end
   local help_dcol_start = vim.fn.strdisplaywidth(content_line:sub(1, help_byte_start))
   local help_dcol_end   = vim.fn.strdisplaywidth(content_line)
-  cbar_zones[#cbar_zones + 1] = { 1, help_dcol_start, help_dcol_end,
+  cbar_zones[#cbar_zones + 1] = { 2, help_dcol_start, help_dcol_end,
                                    function() require("turbo-debug.help").open() end }
 end
 
@@ -496,7 +503,7 @@ local function open_bars()
     sbar_win = vim.api.nvim_get_current_win()
     sbar_buf = vim.api.nvim_create_buf(false, true)
     vim.api.nvim_win_set_buf(sbar_win, sbar_buf)
-    vim.api.nvim_win_set_height(sbar_win, 2)
+    vim.api.nvim_win_set_height(sbar_win, 3)
     setup_bar_buf(sbar_buf)
     setup_bar_win(sbar_win)
     vim.wo[sbar_win].winfixheight = true
@@ -515,7 +522,7 @@ local function open_bars()
     cbar_win = vim.api.nvim_get_current_win()
     cbar_buf = vim.api.nvim_create_buf(false, true)
     vim.api.nvim_win_set_buf(cbar_win, cbar_buf)
-    vim.api.nvim_win_set_height(cbar_win, 2)
+    vim.api.nvim_win_set_height(cbar_win, 3)
     setup_bar_buf(cbar_buf)
     setup_bar_win(cbar_win)
     vim.wo[cbar_win].winfixheight = true