colors/paper-tonic.lua

@@ -847,8 +847,15 @@ local highlight_groups = {
     IndentGuidesOdd = {bg = c_bg_hl},
     IndentGuidesEven = {bg = c_bg_hl_strong},
 
-    --[[ 4.4.7. Netrw ]]
-    netrwMarkFile = 'Search',
+    --[[ 4.4.7. NERDTree ]]
+    NERDTreeCWD = 'Label',
+    NERDTreeUp = 'Operator',
+    NERDTreeDir = 'Directory',
+    NERDTreeDirSlash = 'Delimiter',
+    NERDTreeOpenable = 'NERDTreeDir',
+    NERDTreeClosable = 'NERDTreeOpenable',
+    NERDTreeExecFile = 'Function',
+    NERDTreeLinkTarget = 'Tag',
 
     --[[ 4.4.8. nvim-treesitter ]]
     TSConstBuiltin = 'Constant',

lua/paper-tonic.lua

@@ -7,9 +7,7 @@
 --[[/* VARS */]]
 
 --- Which set of colors to use.
-local has_t_Co = pcall(function() return vim.go.t_Co end)
-local _USE_256 = (has_t_Co and tonumber(vim.go.t_Co) > 255) or string.find(vim.env.TERM, '256')
-
+local _USE_256 = tonumber(vim.go.t_Co) > 255 or string.find(vim.env.TERM, '256')
 
 --- Indicating nothing for a highlight field.
 local _NONE = 'NONE'