design-params-json

name

design-params-json

description

How to generate a design_parameters.json file containing the applied HEX color values and heading font name used in a branded poster or artifact. Use this skill whenever a task requires outputting a machine-readable record of design tokens alongside a visual output. Triggers on: "design_parameters.json", "design parameters", "applied hex values", "color parameters json", "brand token json output".

Design Parameters JSON Output

Purpose

After generating a branded visual artifact, output a companion JSON file that records every applied design token so engineers can reproduce or audit the styling.

Required JSON Structure

The file must use exactly these keys (no additions, no renames):

{
  "background_hex": "",
  "corporate_dark_hex": "",
  "primary_accent_hex": "",
  "secondary_accent_hex": "",
  "tertiary_accent_hex": "",
  "muted_mid_gray_hex": "",
  "applied_heading_font": ""
}

Population Rules

Key	Value source
background_hex	Color used for the poster/page background
corporate_dark_hex	Color used for the outer casing / dark surfaces
primary_accent_hex	Color used for interaction details / highlights
secondary_accent_hex	Color used for the Thermal Management Unit
tertiary_accent_hex	Color used for the PCB substrate
muted_mid_gray_hex	Color used for annotation leader lines
applied_heading_font	Exact font family string used in the title block

Python Output Snippet

import json

design_params = {
    "background_hex":      IDENTITY_LIGHT,
    "corporate_dark_hex":  CORPORATE_DARK,
    "primary_accent_hex":  PRIMARY_ACCENT,
    "secondary_accent_hex": SECONDARY_ACCENT,
    "tertiary_accent_hex": TERTIARY_ACCENT,
    "muted_mid_gray_hex":  MUTED_MID_GRAY,
    "applied_heading_font": HEADING_FONT,
}

with open("/root/design_parameters.json", "w") as f:
    json.dump(design_params, f, indent=2)

Validation

• All HEX values must start with # and be 7 characters (e.g. #F5F0EB).
• Font name must be the exact string passed to fontfamily= in matplotlib.
• File must be valid JSON parseable by json.load().