Proposal: Sequential blue palette for version download chart

[Thomas-Vos00]

Proposal

Replace the rainbow categorical color scheme in the version download bar chart with a single-hue sequential blue palette. This is a visual design proposal — feedback welcome.

Problem

The current chart uses 6 highly saturated, unrelated colors (blue, teal, yellow, orange, dark navy + muted foreground) that create visual noise:

• No visual hierarchy — every segment competes equally for attention, with "Other" (the least meaningful category) being just as prominent
• Warm/cool clash — jumping between unrelated hues creates a jarring rainbow effect
• Adjacent high-contrast pairs — dark navy next to bright teal, yellow next to orange creates harsh segment boundaries

Solution

• Sequential blue palette (#08519c → #9ecae1) — signals that all version segments are related (versions of the same package) and naturally reduces visual noise. Most-downloaded version gets the darkest blue (most prominent at bottom of stack).
• Neutral gray for "Other" — pushes the catch-all category to the background
• Dark mode support — colors are defined as CSS custom properties (--chart-blue-1 through --chart-blue-5, --chart-other) with separate light/dark values
• Dynamic interpolation — colors are evenly distributed across the palette regardless of the number of versions (1–5) via a getVersionColor() helper

Additional fixes

• Fixed useMemo never caching — versions was derived via .map() outside useMemo but listed as a dependency, creating a new array reference every render and defeating memoization entirely
• Extracted OTHER_VERSION constant — reduces fragile string coupling with the backend

Palette

Segment	Light mode	Dark mode
Version 1 (most downloaded)	#08519c (dark blue)	#6baed6 (light blue)
Version 2	#2171b5	#4292c6
Version 3	#4292c6	#2171b5
Version 4	#6baed6	#08519c
Version 5	#9ecae1 (light blue)	#084594 (dark blue)
Other	#d4d4d8 (light gray)	oklch(0.35 0 0) (dark gray)

[Strazz1337]

thought: it'd probably be more logical to keep the colors in oklch color space.