Challenge 3: Flattening Early, Then a Client Asks for a Change — Solution Walkthrough

The problem this creates:

Per this chapter's own warning box, flattening merges every layer into
one, permanently discarding the ability to adjust any individual
layer afterward. Once flattened, the logo is no longer a separate,
movable layer at all — it's permanently merged into the single
combined image, meaning it can no longer simply be selected and
repositioned the way it could have been while still its own layer.

Why this is a real, painful consequence, not a minor inconvenience:

Repositioning the logo now requires either recreating the logo layer
from scratch and compositing it back in, or redoing significant
portions of the design entirely — real, avoidable extra work caused
directly by flattening a file that still had a real chance of needing
further changes.

What the designer should have done instead:

Per this chapter's own material, standard practice is keeping every
layer intact throughout the entire editing process, flattening — or
better, exporting a separate flattened copy — only at the very final
step, once no further changes are genuinely expected. Concern about
file size specifically should have been addressed by exporting a
flattened copy for delivery while still preserving the original,
fully-layered working file untouched, rather than flattening the one
and only working file itself.

WHY THIS WORKS AS AN ANSWER
------------------------------
This exercise directly applies this chapter's own warning box to the
exact realistic scenario it was written to describe — a stakeholder
requesting a change after premature flattening — correctly identifying
both the consequence and the standard practice that would have avoided
it.