Added custom function for tabline not to display the 'X'/Close symbol on top right corner. Additionally, given it some Kanagawa theme compatible native tabline look.

init.lua

@@ -812,5 +812,71 @@ require('luasnip.loaders.from_vscode').lazy_load()
 -- Theme
 require('kanagawa').setup { transparent = true }
 vim.cmd [[colorscheme kanagawa]]
+
+-- Custom native-looking tabline that matches Kanagawa theme
+vim.o.showtabline = 1
+_G.tab_offset = 1
+local max_visible_tabs = 8 -- maximum number of tabs visible at once
+
+function _G.Tabline()
+  local current_tab = vim.fn.tabpagenr()
+  local tab_count = vim.fn.tabpagenr '$'
+  local win_width = vim.o.columns
+  local tab_width = math.floor(win_width / max_visible_tabs) -- FIXED width
+
+  local tabs = {}
+  for i = 1, tab_count do
+    local buflist = vim.fn.tabpagebuflist(i)
+    local winnr = vim.fn.tabpagewinnr(i)
+    local bufname = vim.fn.bufname(buflist[winnr])
+    if bufname == '' then
+      bufname = '[No Name]'
+    end
+    local modified = vim.fn.getbufvar(buflist[winnr], '&mod') == 1 and ' ●' or ''
+    local label = i .. ': ' .. vim.fn.fnamemodify(bufname, ':t') .. modified
+
+    -- truncate/pad to fixed tab_width
+    if #label > tab_width - 2 then
+      label = label:sub(1, tab_width - 3) .. '…'
+    end
+    label = label .. string.rep(' ', tab_width - #label)
+
+    tabs[i] = (i == current_tab and '%#TabLineSel#' or '%#TabLine#') .. label
+  end
+
+  -- scrolling logic to keep active tab visible
+  local start_index = _G.tab_offset
+  if current_tab < start_index then
+    start_index = current_tab
+  elseif current_tab >= start_index + max_visible_tabs then
+    start_index = current_tab - max_visible_tabs + 1
+  end
+  _G.tab_offset = start_index
+
+  -- select visible tabs
+  local visible_tabs = {}
+  for i = start_index, math.min(start_index + max_visible_tabs - 1, tab_count) do
+    table.insert(visible_tabs, tabs[i])
+  end
+
+  -- scrolling arrows
+  local left_arrow = start_index > 1 and '< ' or '  '
+  local right_arrow = start_index + max_visible_tabs - 1 < tab_count and ' >' or '  '
+
+  return '%#TabLine#' .. left_arrow .. table.concat(visible_tabs, '') .. right_arrow .. '%#TabLineFill#'
+end
+
+vim.o.tabline = '%!v:lua.Tabline()'
+
+-- adjust offset if tabs are closed
+vim.api.nvim_create_autocmd({ 'TabClosed' }, {
+  callback = function()
+    local tab_count = vim.fn.tabpagenr '$'
+    if _G.tab_offset > tab_count then
+      _G.tab_offset = math.max(tab_count - max_visible_tabs + 1, 1)
+    end
+  end,
+})
+
 -- The line beneath this is called `modeline`. See `:help modeline`
 -- vim: ts=2 sts=2 sw=2 et