Implement Figure.pygmtlogo for the PyGMT logo#4616

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seisman wants to merge 7 commits intomainfrom

Commits on May 2, 2026

Figure.pygmtlogo: Initial implementation for the circular, colored PyGMT logo (#3849)

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Commits on May 6, 2026

Force the default logo size to 2-cm and rename test_pygmtlogo to test_pygmtlogo_circle_no_wordmark (#4617)

seisman
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yvonnefroehlich
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Merge branch 'main' into pygmtlogo
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Commits on May 7, 2026

Add a test to check the design details of the circular logo (#4623)
seisman
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Figure.pygmtlogo: Add tests for the circular, black/white PyGMT logo (#4625)
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Commits on May 8, 2026

Merge branch 'main' into pygmtlogo
seisman
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Commits on May 9, 2026

Figure.pygmtlogo: Simplify the code logic for defining colors (#4629)
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