Warm hues for transition metals (contrast with blue iso)

The default iso-surface shading is blue; CPK/Jmol's standard colors for
4d/5d transition metals (Rh `#0a7d8c`, Pd `#006985`, Mo `#54b5b5`, Ti
`#bfc2c7`, Hf `#4dc2ff`, Ta `#4da6ff`, W `#2194d6`, Re `#267dab`, Os
`#266696`, Ir `#175487`, etc.) are blue/teal/gray and visually merge
with the iso. Repalette these to warm hues (red/orange/yellow/pink)
that contrast with both the iso *and* each other.

Diverges from CPK convention but ELvis isn't a chemistry-publication
viewer — legibility against the surface beats Jmol-fidelity. Bi
(purple), Fe (orange), Co (pink), N (blue), O (red), S (yellow), Cl
(green) keep their canonical colors since those don't conflict.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: ryan-williams

pkgs/core/src/utils/elements.ts

@@ -28,10 +28,10 @@ export const ELEMENTS: Record<string, ElementData> = {
   Ar: { color: 0x80d1e3, radius: 1.06 },
   K:  { color: 0x8f40d4, radius: 2.03 },
   Ca: { color: 0x3dff00, radius: 1.76 },
-  Sc: { color: 0xe6e6e6, radius: 1.70 },
-  Ti: { color: 0xbfc2c7, radius: 1.60 },
-  V:  { color: 0xa6a6ab, radius: 1.53 },
-  Cr: { color: 0x8a99c7, radius: 1.39 },
+  Sc: { color: 0xff9466, radius: 1.70 },
+  Ti: { color: 0xffb5e8, radius: 1.60 },
+  V:  { color: 0xff6b6b, radius: 1.53 },
+  Cr: { color: 0xff5e3a, radius: 1.39 },
   Mn: { color: 0x9c7ac7, radius: 1.39 },
   Fe: { color: 0xe06633, radius: 1.32 },
   Co: { color: 0xf090a0, radius: 1.26 },
@@ -46,14 +46,14 @@ export const ELEMENTS: Record<string, ElementData> = {
   Kr: { color: 0x5cb8d1, radius: 1.16 },
   Rb: { color: 0x702eb0, radius: 2.20 },
   Sr: { color: 0x00ff00, radius: 1.95 },
-  Y:  { color: 0x94ffff, radius: 1.90 },
-  Zr: { color: 0x94e0e0, radius: 1.75 },
-  Nb: { color: 0x73c2c9, radius: 1.64 },
-  Mo: { color: 0x54b5b5, radius: 1.54 },
-  Tc: { color: 0x3b9e9e, radius: 1.47 },
-  Ru: { color: 0x248f8f, radius: 1.46 },
-  Rh: { color: 0x0a7d8c, radius: 1.42 },
-  Pd: { color: 0x006985, radius: 1.39 },
+  Y:  { color: 0xffe066, radius: 1.90 },
+  Zr: { color: 0xffaa3a, radius: 1.75 },
+  Nb: { color: 0xff7a3a, radius: 1.64 },
+  Mo: { color: 0xff8c00, radius: 1.54 },
+  Tc: { color: 0xff5252, radius: 1.47 },
+  Ru: { color: 0xffb000, radius: 1.46 },
+  Rh: { color: 0xff1493, radius: 1.42 },
+  Pd: { color: 0xff69b4, radius: 1.39 },
   Ag: { color: 0xc0c0c0, radius: 1.45 },
   Cd: { color: 0xffd98f, radius: 1.44 },
   In: { color: 0xa67573, radius: 1.42 },
@@ -78,12 +78,12 @@ export const ELEMENTS: Record<string, ElementData> = {
   Tm: { color: 0x00d452, radius: 1.90 },
   Yb: { color: 0x00bf38, radius: 1.87 },
   Lu: { color: 0x00ab24, radius: 1.87 },
-  Hf: { color: 0x4dc2ff, radius: 1.75 },
-  Ta: { color: 0x4da6ff, radius: 1.70 },
-  W:  { color: 0x2194d6, radius: 1.62 },
-  Re: { color: 0x267dab, radius: 1.51 },
-  Os: { color: 0x266696, radius: 1.44 },
-  Ir: { color: 0x175487, radius: 1.41 },
+  Hf: { color: 0xffc56a, radius: 1.75 },
+  Ta: { color: 0xff9a3a, radius: 1.70 },
+  W:  { color: 0xffd700, radius: 1.62 },
+  Re: { color: 0xff4040, radius: 1.51 },
+  Os: { color: 0xff7f00, radius: 1.44 },
+  Ir: { color: 0xff6699, radius: 1.41 },
   Pt: { color: 0xd0d0e0, radius: 1.36 },
   Au: { color: 0xffd123, radius: 1.36 },
   Hg: { color: 0xb8b8d0, radius: 1.32 },