HexEditor: Add annotations system

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Allow the user to highlight sections of the edited document, giving them
arbitrary background colors. These annotations can be created from a
selection, or by manually specifying the start and end offsets.
Annotations can be edited or deleted by right-clicking them.

Any color can be used for the background. Dark colors automatically make
the text white for easier readability. When creating a new annotation,
we use whatever color the user last picked as this is slightly more
likely to be the one they want.

Icons contributed by Cubic Love.

Co-authored-by: Cubic Love <7754483+cubiclove@users.noreply.github.com>

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Sam Atkins 2024-01-10 19:49:40 +00:00 • committed by Sam Atkins

parent 1168e46c1d

commit cbd28c9110

13 changed files with 378 additions and 4 deletions

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