deps: bump github.com/alecthomas/chroma/v2 from 2.24.1 to 2.26.1

[dependabot]

Bumps github.com/alecthomas/chroma/v2 from 2.24.1 to 2.26.1.

Release notes

Sourced from github.com/alecthomas/chroma/v2's releases.

v2.26.1

Changelog

• 56c7702 fix: downgrade go.mod version to 1.25

v2.26.0

Changelog

• a4d3f60 feat(chromad): use style counterparts for theme switching
• ce159e6 chore: migrate to new bit format
• 180ea9f perf(colour): replace Sprintf/ParseUint round-trip in NewColour with direct bit arithmetic (#1274)
• 68a08b0 docs: how to support dynamic theme switching
• 6fb9d92 feat(html): tag output with style mode
• a71fea3 feat(styles): add light/dark mode support

v2.25.0

Changelog

• c3826f0 chore: go mod tidy
• fb5bc39 fix: emit HTTP body tokens without Coalesce
• a3c2946 Improve Nu file detection (#1260)
• e841b1a chore(deps): update all non-major dependencies (#1272)
• 3ed2db8 Add Gemfile.lock lexer (& ruby improvements) (#1269)
• 41fb546 Add YAML+Jinja lexer (#1268)
• e99b881 chore(deps): update all non-major dependencies (#1263)
• e67dd2f (Markless) Fix parse issue for embed directives without options (#1266)
• dffa370 fix(go): tokenize trailing // as comment instead of consuming next line (#1265)
• 1cf1560 chore: upgrade to github.com/dlclark/regexp2/v2
• 2cbcf7b chore: upgrade golangci-lint
• 786675b chore(deps): update all non-major dependencies (#1257)
• 235590c feat: add JSONL support to JSON lexer (#1262)
• f9b5c97 fix(dart): match single-line comments without trailing newline (#1225) (#1261)
• 097f8e9 Mention Arturo in README (#1256)
• d46ce60 feat(markdown): highlight frontmatter and comments (#1245)
• f786b2a feat(lexers): add support for LilyPond (#1255)
• 0a02b98 chore(deps): update actions/checkout digest to de0fac2 (#1212)
• c55009e Fix AGENTS.md referencing a non-existent scripts directory (#1231)
• c5e763e Improve protobuf lexer (#1253)
• 113cd0e Add Arturo lexer (#1232)
• 4498d71 chore(deps): update dependency binaryen to v129 (#1238)
• 885f912 Added f4 to "Projects using Chroma" list (#1242)
• c42c9ef Update java lexer (#1254)

Commits

• 56c7702 fix: downgrade go.mod version to 1.25
• a4d3f60 feat(chromad): use style counterparts for theme switching
• ce159e6 chore: migrate to new bit format
• 180ea9f perf(colour): replace Sprintf/ParseUint round-trip in NewColour with direct b...
• 68a08b0 docs: how to support dynamic theme switching
• 6fb9d92 feat(html): tag output with style mode
• a71fea3 feat(styles): add light/dark mode support
• c3826f0 chore: go mod tidy
• fb5bc39 fix: emit HTTP body tokens without Coalesce
• a3c2946 Improve Nu file detection (#1260)
• Additional commits viewable in compare view

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[github-actions]

AI Code Review

What Looks Good

• The PR is a straightforward dependency update with clear release notes from the upstream project.
• No changes to MDL syntax, grammar, AST, visitor, executor, or backend code — so no risk of breaking MDL pipeline consistency.
• The update includes performance improvements (direct bit arithmetic in colour parsing) and new features (light/dark mode support, dynamic theme switching) that may benefit the project's syntax highlighting capabilities.
• The indirect update of github.com/dlclark/regexp2 to v2 is solely driven by the chroma upgrade and appears to be a transitive dependency change with no direct usage in the codebase (based on provided context).

Recommendation

Approve the PR. The dependency update is safe, follows semantic versioning principles, and introduces no code changes that would violate the project's architectural guidelines or review checklist. No further action is required.

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