This will allow us to easily add copies of the relevant canvas drawing
state to a stack, and likewise replace the current drawing state with
an entry from that stack.
I don't know if the original author simply missed this or thought the
default color of Gfx::Color is black, but this meant that drawing on a
canvas without explicitly setting a fillStyle or strokeStyle first would
be drawn in transparent color and therefore be invisible.
In the spec this is indicated by a small comment in the IDL definition:
attribute ... strokeStyle; // (default black)
attribute ... fillStyle; // (default black)
I'm starting to question whether Gfx::Color actually *should* have a
default constructor.
SPDX License Identifiers are a more compact / standardized
way of representing file license information.
See: https://spdx.dev/resources/use/#identifiers
This was done with the `ambr` search and replace tool.
ambr --no-parent-ignore --key-from-file --rep-from-file key.txt rep.txt *
