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feat: add theme field to Icon type for light/dark mode support #1978

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Merged
Kludex merged 2 commits into from
Feb 3, 2026
+13 −0
Merged

feat: add theme field to Icon type for light/dark mode support #1978

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7be0928
feat: add theme field to Icon type for light/dark mode support
gfortaine Jan 30, 2026
ad0df32
Apply suggestion: improve Icon.theme docstring with spec link
gfortaine Feb 2, 2026
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2 changes: 2 additions & 0 deletions src/mcp/types/__init__.py
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Original file line number Diff line number Diff line change
Expand Up @@ -70,6 +70,7 @@
GetTaskRequestParams,
GetTaskResult,
Icon,
IconTheme,
ImageContent,
Implementation,
IncludeContext,
Expand Down Expand Up @@ -275,6 +276,7 @@
"BlobResourceContents",
"EmbeddedResource",
"Icon",
"IconTheme",
"ImageContent",
"ResourceContents",
"ResourceLink",
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6 changes: 6 additions & 0 deletions src/mcp/types/_types.py
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Expand Up @@ -28,6 +28,8 @@
ProgressToken = str | int
Role = Literal["user", "assistant"]

IconTheme = Literal["light", "dark"]

TaskExecutionMode = Literal["forbidden", "optional", "required"]
TASK_FORBIDDEN: Final[Literal["forbidden"]] = "forbidden"
TASK_OPTIONAL: Final[Literal["optional"]] = "optional"
Expand Down Expand Up @@ -170,6 +172,10 @@ class Icon(MCPModel):
sizes: list[str] | None = None
"""Optional list of strings specifying icon dimensions (e.g., ["48x48", "96x96"])."""

theme: IconTheme | None = None
"""Optional theme specifier. 'light' indicates the icon is designed for a light
background, 'dark' indicates the icon is designed for a dark background."""


class Implementation(BaseMetadata):
"""Describes the name and version of an MCP implementation."""
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