fix: thanks m$

nvim/lua/config/autocmds.lua

@@ -12,6 +12,26 @@
 -- })
 -- nvim-tree is also there in modified buffers so this function filter it out
 
+vim.api.nvim_create_autocmd("LspAttach", {
+  callback = function(ev)
+    local client = vim.lsp.get_client_by_id(ev.data.client_id)
+    local function toSnakeCase(str)
+      return string.gsub(str, "%s*[- ]%s*", "_")
+    end
+
+    if client.name == "omnisharp" then
+      local tokenModifiers = client.server_capabilities.semanticTokensProvider.legend.tokenModifiers
+      for i, v in ipairs(tokenModifiers) do
+        tokenModifiers[i] = toSnakeCase(v)
+      end
+      local tokenTypes = client.server_capabilities.semanticTokensProvider.legend.tokenTypes
+      for i, v in ipairs(tokenTypes) do
+        tokenTypes[i] = toSnakeCase(v)
+      end
+    end
+  end,
+})
+
 local modifiedBufs = function(bufs)
   local t = 0
   for k, v in pairs(bufs) do