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silx vs unhcrthemes

A side-by-side editorial comparison of silx and unhcrthemes — release velocity, themes, recent moves, and the top alternatives to consider.

Shared themes:data-visualization

silx vs unhcrthemes: at a glance

Featuresilxunhcrthemes
SectorAnalyticsAnalytics
Velocity score5.00.0
Sparks · 30d00
Top themesscientific-computing, data-visualization, synchrotron, qtdata-visualization, ggplot2-theme, brand-standards, humanitarian-data
Last editorial update2h ago2d ago
WebsiteVisit →Visit →

What is silx?

silx settles into maintenance a release after its PySide6 migration

silx is in the quiet phase after a generational release. 3.1.1 is a single fix to FitWidget loading a fit function from file. The release before it, 3.1.0, was the first real feature work since the migration - asinh axis scaling, twilight colormaps, and dark-theme icons - and 3.0.1 was similarly small. The 3.0.0 cut that reset the Qt binding and Python floor still defines what the line is doing.

Read the full silx trajectory →

What is unhcrthemes?

UNHCR's chart theme re-based itself on a new house standard, then lost its font pipeline to CRAN attrition.

unhcrthemes supplies theme_unhcr() and the agency's official palettes to ggplot2 users, making it the mechanism by which UNHCR's visual standards reach analysts' charts. The 2025 releases realigned the theme and palettes to the revised UNHCR Data Visualization Guidelines and then stripped out the extrafont dependency. Lato is now imported through systemfonts only.

Read the full unhcrthemes trajectory →

silx vs unhcrthemes: editorial side-by-side

S
silx
ANALYTICS
5.0

silx settles into maintenance a release after its PySide6 migration

◆ Current state

silx is in the quiet phase after a generational release. 3.1.1 is a single fix to FitWidget loading a fit function from file. The release before it, 3.1.0, was the first real feature work since the migration - asinh axis scaling, twilight colormaps, and dark-theme icons - and 3.0.1 was similarly small. The 3.0.0 cut that reset the Qt binding and Python floor still defines what the line is doing.

◆ Where it's heading

The cadence has slowed markedly since April, and the content has shifted from structural change to plotting and colormap refinement. That is the expected shape after a binding migration: downstream beamline code needs a stable target, so the project trades feature velocity for a quiet surface. The gap between 3.0.1 in May and 3.1.0 in August is the clearest signal of the deliberate slowdown.

◆ Prediction

Expect further point releases servicing the plotting and fitting widgets rather than another structural change, with feature work continuing to arrive in the 3.1.x minors rather than patches.

U
unhcrthemes
ANALYTICS
0.0

UNHCR's chart theme re-based itself on a new house standard, then lost its font pipeline to CRAN attrition.

◆ Current state

unhcrthemes supplies theme_unhcr() and the agency's official palettes to ggplot2 users, making it the mechanism by which UNHCR's visual standards reach analysts' charts. The 2025 releases realigned the theme and palettes to the revised UNHCR Data Visualization Guidelines and then stripped out the extrafont dependency. Lato is now imported through systemfonts only.

◆ Where it's heading

Two different forces drive this package. The first is institutional: when the agency published 2025 guidelines, the package followed within months, updating text and gridline colours, revising existing palettes and adding new categorical, sequential and diverging ramps, with older colours flagged for eventual removal. The second is defensive — the font stack was rebuilt not by choice but because Rttf2pt1 is leaving CRAN, and the honest release note concedes the cost: embedding the official Lato font in PDFs is no longer possible. A deprecation of the older palettes is already announced.

◆ Prediction

The announced phase-out of deprecated colours is the most likely next release, since the 0.7.0 notes commit to it explicitly; any further font work depends on what systemfonts can offer for PDF embedding.

Alternatives to silx and unhcrthemes

Other Analytics products tracked by Sparkpulse, ranked by recent ship velocity. Each card links to a full editorial trajectory and lets you pivot into a head-to-head comparison with either silx or unhcrthemes.

See all silx alternatives → · See all unhcrthemes alternatives →

Recent activity from silx and unhcrthemes

Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.

  1. 5h agosilxFitWidget fix for loading a fit function from file
  2. 9d agosilx3.1.0: asinh axis scaling, twilight colormaps, dark-theme icons
  3. 3mo agosilx3.0.1: silx view fails to disable HDF5 file locking
  4. 3mo agosilx3.0.0: PySide6 becomes the default Qt binding, Python 3.10 required
  5. 3mo agosilx3.0.0rc1: release candidate for the PySide6 migration
  6. 11mo agounhcrthemesFont pipeline rebuilt on systemfonts, PDF embedding lost
  7. 1y agounhcrthemesTheme and palettes rebuilt on the 2025 UNHCR guidelines
  8. 1y agosilx2.2.2: plot axes limits, OpenGL axes and libhdf5 1.14 fixes
  9. 1y agounhcrthemesLegend placement defaults and deprecated scale argument dropped
  10. 2y agounhcrthemesSans fallback when Lato is unavailable
  11. 2y agounhcrthemesCRAN resubmission with documentation fixes

Frequently asked questions

What is the difference between silx and unhcrthemes?

Both compete on the same themes — data-visualization — within Analytics. silx is currently shipping more aggressively (velocity 5.0 vs 0.0), with 0 editorial sparks in the last 30 days against 0. See the at-a-glance table above for a side-by-side breakdown of velocity, recent sparks, and editorial themes.

Is silx better than unhcrthemes?

Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. silx is currently shipping more aggressively (velocity 5.0 vs 0.0), with 0 editorial sparks in the last 30 days against 0. For your specific use case, the alternatives sections above list other Analytics products to evaluate alongside.

What are the best alternatives to silx?

Top silx alternatives in Analytics are ranked by recent ship velocity. Browse the "silx alternatives" section above for the current picks, or visit /alternatives/silx for the full list with editorial commentary on each.

What are the best alternatives to unhcrthemes?

Top unhcrthemes alternatives in Analytics are ranked by recent ship velocity. Browse the "unhcrthemes alternatives" section above for the current picks, or visit /alternatives/unhcrthemes for the full list with editorial commentary on each.