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Terminals by name; moving pictures in iTerm2; every picture feature opt-in - #48
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Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01448U5MvpKkRkBjwzkkpPFP
TerminalProfile lists the terminals this package knows, what each can be sent, and how (iTerm2's 1 MiB sequence limit and its multipart transfer). AnsiOutputOptions.For sends a terminal only what the player turned on of what it can do. MovingPictures is a feature of its own, so a picture plays only for a client that asked. A frame of 10 ms or less is shown for 100 ms, as browsers do. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01448U5MvpKkRkBjwzkkpPFP
Rio, mlterm and tmux added; Ghostty, Konsole, mintty and VS Code show a GIF still or cannot animate Kitty frames in a release, so they are listed without MovingPictures; iTerm2 is drawn with its own protocol. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01448U5MvpKkRkBjwzkkpPFP
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WalkthroughThe change adds terminal profiles and a ChangesTerminal profiles and moving-picture output
Priority: ➖ Normal Estimated code review effort: 4 (Complex) | ~45 minutes Change: Feature Sequence Diagram(s)sequenceDiagram
participant Player
participant AnsiOutputOptions
participant TerminalPictureWriter
participant GifWriter
participant Kitty terminal
participant iTerm2 terminal
Player->>AnsiOutputOptions: For(profile, chosen features)
AnsiOutputOptions-->>Player: Options with profile-filtered features
Player->>TerminalPictureWriter: Render picture with options
alt Kitty with MovingPictures
TerminalPictureWriter->>Kitty terminal: Send frames with Shown delays
else iTerm2 with MovingPictures
TerminalPictureWriter->>GifWriter: Encode picture frames
GifWriter-->>TerminalPictureWriter: Return looping GIF bytes
TerminalPictureWriter->>iTerm2 terminal: Send inline image or multipart chunks
end
Merge Risk: 🔵 Low · up to A very small custom multipart limit can interrupt picture rendering. Guard that configuration before splitting images; the risk is limited to host-defined profiles. 🚥 Pre-merge checks | ✅ 4 | ❌ 1❌ Failed checks (1 warning)
✅ Passed checks (4 passed)
Full details: Docstring CoverageExplanation Docstring coverage is 46.15% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 39 functions across 8 files. (3 skipped: 3 unsupported.) ✨ Finishing Touches 💡 1📝 Generate docstrings 💡
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- 🪄 Fix CodeRabbit comments on this PR
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Review comments at @MarkupString.Ansi/Emitters/TerminalPictureWriter.cs:
- Around line 300-313: In InlineImage, return null when the computed multipart
part size is not positive, before using it in the StringBuilder capacity
calculation or splitting loop; preserve the existing behavior for positive part
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📒 Files selected for processing (11)
CHANGELOG.mdMarkupString.Ansi/AnsiOutputOptions.csMarkupString.Ansi/Emitters/GifWriter.csMarkupString.Ansi/Emitters/TerminalPictureWriter.csMarkupString.Ansi/PublicAPI.Unshipped.txtMarkupString.Ansi/README.mdMarkupString.Ansi/TerminalFeatures.csMarkupString.Ansi/TerminalPicture.csMarkupString.Ansi/TerminalProfile.csMarkupString.Tests/Ansi/TerminalFeatureTests.csMarkupString.Tests/Ansi/TerminalProfileTests.cs
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Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01448U5MvpKkRkBjwzkkpPFP
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01448U5MvpKkRkBjwzkkpPFP
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Before: a host passed a bag of
TerminalFeatureswith nothing saying which terminal has which. A moving picture played in Kitty for every client that hadKittyGraphics, and iTerm2 always showed its first frame.After:
TerminalProfilenames 16 terminals and what each can be sent, checked against each project's own source and release notes.AnsiOutputOptions.For(terminal, chosen)sends a terminal only what the player has turned on out of what it can do. A picture moves only for a client with the newMovingPicturesfeature. iTerm2 and WezTerm are sent a looping GIF.How:
GifWriterwrites the GIF: one global palette by median cut over every frame, binned at 5 bits per channel, with no dithering so frames don't shimmer. It uses disposal 2, a NETSCAPE2.0 loop and LZW with table clears. PIL and ffprobe read its output back exactly. The tests decode it with a small GIF reader, including a 128×128, 3-frame picture that fills and clears the LZW table.TerminalProfile.InlineImageLimit, 1 MiB for iTerm2) is sent asMultipartFile/FilePart/FileEndwhere the terminal reads parts (iTerm2 3.5+). Where it doesn't, the picture is sent still. With no profile, the iTerm2 limit applies.z) and the GIF.KittyGraphics. iTerm2 is drawn for with its own protocol, because its Kitty support is unannounced and doesn't animate.🤖 Generated with Claude Code
https://claude.ai/code/session_01448U5MvpKkRkBjwzkkpPFP
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