#1 Ross Chastain - Busch Light Chevrolet (Trackhouse Racing) - 2026 Daytona 500

Number artwork traced as original vectors (OpenCV + hand-checked) from the sources below. No DiecastCharv files and no fan-made number cards were used, viewed or compared.

SOURCES (15 distinct images; local copies in refs/1_ross_chastain/sources/, Getty items are public preview comps used for reference only):
 1. [PRIMARY outline/silhouette reference] NASCAR.com "Paint Scheme Preview: 2026 Daytona 500 and Speedweeks" - official side-view render, 1200x520 (largest size on the CDN; WP media API reports 1200x520 as full size)
    image: https://www.nascar.com/wp-content/uploads/sites/7/2026/02/11/26_NCS_01Daytona_1.jpg
    page:  https://www.nascar.com/gallery/paint-scheme-preview-2026-daytona-500-and-speedweeks/
 2. [colour/scheme confirmation] Trackhouse Racing official 2026 Busch Light scheme image (via TobyChristie.com)
    image: https://tobychristie.com/wp-content/uploads/2026/01/2026-1-busch-light.jpg
    page:  https://tobychristie.com/wp-content/uploads/2026/01/2026-1-busch-light.jpg
 3. [photo] NASCAR.com media: daytona beach, florida – february 12: aj allmendinger, driver of the #16 celsius chevrolet, and ross chastain, driver of the #1 busch light 
    image: https://www.nascar.com/wp-content/uploads/sites/7/2026/02/13/GettyImages-2261339267-scaled.jpg
    page:  https://www.nascar.com/wp-content/uploads/sites/7/2026/02/13/GettyImages-2261339267-scaled.jpg
 4. [photo] Getty Images news photo (public preview): daytona beach fl ross chastain during practice for the nascar cup series daytona 500 on
    image: https://media.gettyimages.com/id/2260546189/photo/daytona-beach-fl-ross-chastain-during-practice-for-the-nascar-cup-series-daytona-500-on.jpg?s=612x612&w=0&k=20&c=wv34fZgBLeDY5ijeY84iSGNVg1-70d_BPVaicNVihbo=
    page:  https://www.gettyimages.com/detail/news-photo/daytona-beach-fl-ross-chastain-during-practice-for-the-nascar-cup-series-daytona-500-on/2260546189
 5. [photo] Getty Images news photo (public preview): daytona beach fl kyle busch and ross chastain during practice for the nascar cup series
    image: https://media.gettyimages.com/id/2261032226/photo/daytona-beach-fl-kyle-busch-and-ross-chastain-during-practice-for-the-nascar-cup-series.jpg?s=612x612&w=0&k=20&c=YRRzNAgtWcNDH44YA4VI3S9_bfHZVltU--tyX8YUBjg=
    page:  https://www.gettyimages.com/detail/news-photo/daytona-beach-fl-kyle-busch-and-ross-chastain-during-practice-for-the-nascar-cup-series/2261032226
 6. [photo] Getty Images news photo (public preview): daytona beach fl ross chastain races into turn 4 during practice for the nascar cup series
    image: https://media.gettyimages.com/id/2261059885/photo/daytona-beach-fl-ross-chastain-races-into-turn-4-during-practice-for-the-nascar-cup-series.jpg?s=612x612&w=0&k=20&c=e6mXttHovWOHSvYULLEzmM5yAk3avqJQ_5OhVDOmg2o=
    page:  https://www.gettyimages.com/detail/news-photo/daytona-beach-fl-ross-chastain-races-into-turn-4-during-practice-for-the-nascar-cup-series/2261059885
 7. [photo] Getty Images news photo (public preview): daytona beach florida ross chastain driver of the busch light chevrolet drives during
    image: https://media.gettyimages.com/id/2261085822/photo/daytona-beach-florida-ross-chastain-driver-of-the-busch-light-chevrolet-drives-during.jpg?s=612x612&w=0&k=20&c=SETL0V1IHZS63tYHrxSXOKZb5e44KbrZtK4IpjGlSwI=
    page:  https://www.gettyimages.com/detail/news-photo/daytona-beach-florida-ross-chastain-driver-of-the-busch-light-chevrolet-drives-during/2261085822
 8. [photo] Getty Images news photo (public preview): daytona beach florida ross chastain driver of the busch light chevrolet drives during
    image: https://media.gettyimages.com/id/2261097369/photo/daytona-beach-florida-ross-chastain-driver-of-the-busch-light-chevrolet-drives-during.jpg?s=612x612&w=0&k=20&c=s9719Mlhx2OryNk7hhsZ-1Yk_2BisWlI3dFxuZA7j6Q=
    page:  https://www.gettyimages.com/detail/news-photo/daytona-beach-florida-ross-chastain-driver-of-the-busch-light-chevrolet-drives-during/2261097369
 9. [photo] Getty Images news photo (public preview): daytona beach florida ross chastain driver of the busch light chevrolet drives through the
    image: https://media.gettyimages.com/id/2261101867/photo/daytona-beach-florida-ross-chastain-driver-of-the-busch-light-chevrolet-drives-through-the.jpg?s=612x612&w=0&k=20&c=uhGMutOJJLQrT3YPu1wfiqpvSAYQkOjP6Ij4JUPcbDc=
    page:  https://www.gettyimages.com/detail/news-photo/daytona-beach-florida-ross-chastain-driver-of-the-busch-light-chevrolet-drives-through-the/2261101867
10. [photo] Getty Images news photo (public preview): daytona beach florida ross chastain driver of the busch light chevrolet poses for a photo
    image: https://media.gettyimages.com/id/2261167097/photo/daytona-beach-florida-ross-chastain-driver-of-the-busch-light-chevrolet-poses-for-a-photo.jpg?s=612x612&w=0&k=20&c=wt2e1_oQb23bIsTcSa3f1qZteEchGxdWTip0hTv_Vxg=
    page:  https://www.gettyimages.com/detail/news-photo/daytona-beach-florida-ross-chastain-driver-of-the-busch-light-chevrolet-poses-for-a-photo/2261167097
11. [photo] Getty Images news photo (public preview): daytona beach florida ross chastain driver of the busch light chevrolet drives during
    image: https://media.gettyimages.com/id/2261531315/photo/daytona-beach-florida-ross-chastain-driver-of-the-busch-light-chevrolet-drives-during.jpg?s=612x612&w=0&k=20&c=DdmBGne0pNO4BN9tsMONyfgkCYA85LnnYu4qnJ5T5GU=
    page:  https://www.gettyimages.com/detail/news-photo/daytona-beach-florida-ross-chastain-driver-of-the-busch-light-chevrolet-drives-during/2261531315
12. [photo] Getty Images news photo (public preview): daytona beach fl ross chastain races with corey heim and noah gragson during the running of
    image: https://media.gettyimages.com/id/2261781641/photo/daytona-beach-fl-ross-chastain-races-with-corey-heim-and-noah-gragson-during-the-running-of.jpg?s=612x612&w=0&k=20&c=9d0drAPh68vxmTG6qcFwa8p8kzWE6qDsftoYysE4-O0=
    page:  https://www.gettyimages.com/detail/news-photo/daytona-beach-fl-ross-chastain-races-with-corey-heim-and-noah-gragson-during-the-running-of/2261781641
13. [photo] Getty Images news photo (public preview): daytona beach florida ross chastain driver of the busch light chevrolet pits during the
    image: https://media.gettyimages.com/id/2261826431/photo/daytona-beach-florida-ross-chastain-driver-of-the-busch-light-chevrolet-pits-during-the.jpg?s=612x612&w=0&k=20&c=rnk-CnFp-TIffV0HANaZeHIQAqdvwNBC7ViILV3-sJ0=
    page:  https://www.gettyimages.com/detail/news-photo/daytona-beach-florida-ross-chastain-driver-of-the-busch-light-chevrolet-pits-during-the/2261826431
14. [photo] Motorsport.com Daytona 500 gallery (Getty photo)
    image: https://cdn-1.motorsport.com/images/mgl/0R7wNqg2/s1200/ross-chastain-trackhouse-racin.jpg
    page:  https://www.motorsport.com/nascar-cup/galleries/x/11830/
15. [photo] Motorsport.com Daytona 500 gallery (Getty photo)
    image: https://cdn-1.motorsport.com/images/mgl/2eZglqlY/s1200/ross-chastain-trackhouse-racin.jpg
    page:  https://www.motorsport.com/nascar-cup/galleries/x/11833/

PRIMARY OUTLINE REFERENCE: #1 above (NASCAR.com Paint Scheme Preview, 2026 Daytona 500 & Speedweeks). It is an orthographic side render, so it is already flat (no perspective rectification needed); upscaled 8x (bicubic) for tracing.

FINAL SPEC: fill gradient #0c3861->#00132c, cap above slash #063c6a, white slash 17/1000 (measured line from preview), white ring 58/1000, pale-blue #88a6bc ring to 130/1000, mitred (blocky) corners as on the preview. No drop shadow (preview/photos show none - v4's grey shadow removed).

METRICS
- Vector glyph vs preview number fill (geometry): IoU 0.9899
- Final rendered SVG vs preview: fill IoU 0.9764, outer silhouette IoU 0.8536
- Outline layers (outer->inner) traced-vs-uniform-offset IoU: [{'traced_vs_offset': 0.9179}, {'traced_vs_offset': 0.9865}]
- Preview glyph vs real photos (ECC homography alignment, IoU in photo space):
    1_ross_chastain/cand/c03.jpg: 0.9369 (number 96px tall)
    1_ross_chastain/cand/c06.jpg: 0.9391 (number 131px tall)
- v4 (previous, photo-traced) glyph IoU vs its own photo: 0.985

PERFECTION ROUNDS (v5)
- R1 preview trace: fill mask missed the cap above the white slash (slash split the glyph) -> closed with 25px kernel; fill IoU vector-vs-preview 0.990.
- R2 layers: uniform round offsets looked too soft vs the blocky preview outline -> switched to mitred joins; swept white/pale widths vs preview colour masks (best white 58, pale 130: white-ring IoU 0.931, pale-ring IoU 0.761 - pale ring merges with the pale mountain art on the preview so it can't score higher).
- R3 slash/cap measured from preview (line fit), drop shadow removed, colours from preview + photos; rendered-pixel fill IoU 0.976 (gradient + slash make pixel IoU slightly lower than the geometric 0.990).

Roof: checked against overhead Getty shots listed above (roof uses same glyph, roof colours from overhead photos).
