Exercise 1: Set a Workspace-Only Preference — Possible Solution
====================================================================

STEPS
------------------------------
1. Open Project A (any folder).
2. Press Ctrl+, to open the Settings UI.
3. Click the "Workspace" tab near the top (as opposed to "User") —
   this scopes every change you make below it to Project A only.
4. Search for "tab size" and set editor.tabSize to 2.
5. Behind the scenes, this writes into Project A's own
   .vscode/settings.json:
       {
         "editor.tabSize": 2
       }
6. Close Project A. Open a completely different Project B (one that
   has never had its own Workspace tabSize set).
7. Press Ctrl+, again, check the "User" tab's tabSize value (whatever
   your personal global default is — commonly 4).
8. Confirm Project B is actually USING that User-level default (type
   in a file and press Tab, or check the value shown under the
   "Workspace" tab, which should be empty/inherited rather than
   showing 2).

WHY THIS WORKS AS AN ANSWER
------------------------------
Explicitly selecting the "Workspace" tab before changing the setting
is the key step — changing it while the "User" tab is selected would
instead update your GLOBAL default, silently affecting every other
project too, the opposite of what this exercise demonstrates.

Confirming Project B still shows the User-level default proves the
chapter's own core claim directly: Workspace settings only apply to
"the currently open folder," per the chapter's own comparison table —
Project A's tabSize: 2 lives entirely inside Project A's own
.vscode/settings.json file and has zero effect on any other project,
including ones opened afterward on the same machine.