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Product Sketch

StyleRef·@styleref·
STYLE REFERENCE — HARD CONSTRAINT (HIGHEST PRIORITY) This style must be applied to ALL generated content (text, image, video). If any part of the request conflicts with this style, the style OVERRIDES the request. STYLE DEFINITION (to be operationally enforced): Product Sketch • Output Format: Creative discipline: Illustration; Digital; Delivery mode: Still. • Mood & Personality: Energetic marker sketch aesthetic; casual, design-sketch presentation; Energy: Active; Emotional bias: Positive; Representation mode: Literal; Real-world accuracy: Loosely accurate; Minimal narrative; Humor: Occasional. • Colors: Palette: Solid Colors: [ #FFFFFF 55% (Background), #2F3238 12%, #7E848C 10%, #C9CDD3 8%, #C7923A 7%, #8A5A32 4%, #2E7D32 2%, #6A1B9A 1%, #1565C0 1%]; 3–5 colors; Mixed temperature; Saturation: Muted; Value contrast; No gradients; Color dominance: Background-dominant. • Light & Shadow: Lighting mood style: Studio-flat; Key light style: Diffused; Artificial; Light source count: Ambient; Shadow density: Light; Fill-light ratio: Even fill; Lighting presence: Implied. • Spatial Structure & Hierarchy: 2-point perspective; Single focal structure; Hierarchy: Strong; Symmetry: Asymmetrical balance; Balance: Center-weighted; Layout axis: Gridless; Plane separation: Shadow, Color/value shift; Visual density: Airy; Grid system: Free-form. • Surface, Material & Detail: Surface treatment: Matte; Texture: Marker bleed/feathering at edges; streaked marker fill bands from broad strokes; Texture usage: Subtle noise; Imperfection level: Intentional marker artifacts: edge bleed, uneven fill coverage, visible stroke starts/stops; Stylized realism; Micro-detail allowance: Minimal; Micro-detail types: Reflective highlights indicated with white gaps; simplified material cues (metal/wood/leather) via value blocks. • Shape Language: Hybrid; Primitive dominance: Freeform curves, Rectangles; Edge sharpness: Mixed: soft marker edges in fills + very crisp separated silhouette due to white border; Silhouette clarity: Recognizable; Negative space usage: Dominant; Angle usage: Limited. • Line & Stroke System: Structural outlines; Heavy; Confident, slightly wobbly hand-drawn outline; thickness mostly consistent with minor variation consistency; Stroke Color: Deep dark outline + separate thick white marker outline as a spacer/halo; Stroke joins: Round. • Background & Environment: Background type: Solid color; Environment mood: Studio; Background–Subject: Isolated; Background complexity: Minimal: white paper with scattered small rectangular confetti marks and visible real marker pens around the sheet(Marker pens in realistic photo quality); Prop styling: Curated. • Artistic Mediums & Techniques: Physical medium: Alcohol marker rendering on white paper look (large chisel-tip fills) + white marker for separation; Illustrative technique: Marker block-in with visible overlap/bleed; crisp highlight hits; minimal line detailing. • Inspiration Images: https://piteahvrjstrlirkpoid.supabase.co/storage/v1/object/public/images/public/1b048dad-776d-4dea-8cb9-2fe00aa96ee6.webp, https://piteahvrjstrlirkpoid.supabase.co/storage/v1/object/public/images/public/ee42ebba-f35e-4bc8-b84f-563630a34c7f.webp, https://piteahvrjstrlirkpoid.supabase.co/storage/v1/object/public/images/public/b6a6974c-ec2a-4d16-957b-9e3c8d82f3f9.webp, https://piteahvrjstrlirkpoid.supabase.co/storage/v1/object/public/images/public/90904f12-d76b-44b6-9610-aa7b0ad2773e.webp. • References: Industrial design sketch / product-illustration marker comp style; Temporal reference: Contemporary. • White spacer outline rule: Add a thick white marker border between object and background; acts as separation/halo before the dark outline., Marker bleed as background energy: Use large marker strokes behind/around subject; allow visible bleed/overlap to create loose backdrop blocks., Detail economy: Invest detail in silhouette + a few highlight hits; keep interior rendering blocky with minimal linework., Material depiction rule: Materials (metal/wood/leather/food) described through bold value grouping + sparse texture marks rather than heavy detail. ENFORCEMENT RULE: Before finalizing the output, internally verify that ALL elements comply with the style definition above. If compliance is uncertain, simplify or soften the output until it fully matches the style. Generated by StyleRef.io

Made with this StyleRef

Same style, different prompts.

SpaceX Starship Rocket , 1 main angle and 2 smaller sketches from 2 angles. around on paper a few small parts some uncolored like Super Heavy booster
+ A modern minimal astronaut helmet inspired by Porsche Design patterns. 1 main angle and 2 smaller sketches from 2 angles. around on paper a few small parts some uncolored, part of an astronaut glove.
+ A modern minimal astronaut helmet inspired by Porsche Design patterns. 1 main angle and 2 smaller sketches from 2 angles. around on paper a few small parts some uncolored, part of an astronaut glove.
SpaceX Starship Rocket , 1 main angle and 2 smaller sketches from 2 angles. around on paper a few small parts some uncolored like Super Heavy booster
a modern electric baby stroller, 1 main angle and 2 smaller sketches from 2 angles. around on paper a few small parts desing some uncolored

Inspiration Images

Inspiration

Light & Shadow

Lighting Mood Style
Studio-flat
Key Light Style
Diffused
Light Source Type
Artificial
Light Source Count
Ambient
Shadow Density
Light
Fill-light Ratio
Even fill
Lighting Presence
Implied

Surface, Material & Detail

Surface Treatment
Matte
Surface Texture Style
Marker bleed/feathering at edges; streaked marker fill bands from broad strokes
Texture Usage
Subtle noise
Imperfection Level
Intentional marker artifacts: edge bleed, uneven fill coverage, visible stroke starts/stops
Abstraction Level
Stylized realism
Micro-detail Allowance
Minimal
Micro-detail Types
Reflective highlights indicated with white gaps; simplified material cues (metal/wood/leather) via value blocks

References

Cultural References
Industrial design sketch / product-illustration marker comp style
Temporal Reference
Contemporary

Background & Environment

Background Type
Solid color
Environment Mood
Studio
Background–Subject Relationship
Isolated
Background Complexity
Minimal: white paper with scattered small rectangular confetti marks and visible real marker pens around the sheet(Marker pens in realistic photo quality)
Prop / Set Styling
Curated

Colors

#FFFFFF55%Usage: Background
#2F323812%
#7E848C10%
#C9CDD38%
#C7923A7%
#8A5A324%
#2E7D322%
#6A1B9A1%
#1565C01%
Palette Size
3–5 colors
Color Temperature
Mixed
Saturation Range
Muted
Contrast Strategy
Value contrast
Gradient Policy
No gradients
Color Dominance
Background-dominant

Spatial Structure & Hierarchy

Perspective Style
2-point
Focal Structure
Single
Hierarchy Clarity
Strong
Symmetry
Asymmetrical balance
Balance Type
Center-weighted
Layout Axis
Gridless
Plane Separation Method
Shadow, Color/value shift
Visual Density
Airy
Grid System
Free-form

Line & Stroke System

Stroke Usage
Structural outlines
Stroke Weight
Heavy
Stroke Consistency
Confident, slightly wobbly hand-drawn outline; thickness mostly consistent with minor variation
Stroke Color
Deep dark outline + separate thick white marker outline as a spacer/halo
Stroke Joins
Round

Artistic Mediums & Techniques

Physical Medium
Alcohol marker rendering on white paper look (large chisel-tip fills) + white marker for separation
Illustrative Technique
Marker block-in with visible overlap/bleed; crisp highlight hits; minimal line detailing

Output Format

Creative Discipline
Illustration
Medium
Digital
Delivery Mode
Still

Mood & Personality

Mood & Personality
Energetic marker sketch aesthetic; casual, design-sketch presentation
Energy Level
Active
Emotional Bias
Positive
Representation Mode
Literal
Real-world Accuracy
Loosely accurate
Narrative Allowance
Minimal
Humor Usage
Occasional

Shape Language

Shape Basis
Hybrid
Primitive Dominance
Freeform curves, Rectangles
Edge Sharpness
Mixed: soft marker edges in fills + very crisp separated silhouette due to white border
Silhouette Clarity
Recognizable
Negative Space Usage
Dominant
Angle Usage
Limited

Custom Style Items

White spacer outline rule
Add a thick white marker border between object and background; acts as separation/halo before the dark outline.
Marker bleed as background energy
Use large marker strokes behind/around subject; allow visible bleed/overlap to create loose backdrop blocks.
Detail economy
Invest detail in silhouette + a few highlight hits; keep interior rendering blocky with minimal linework.
Material depiction rule
Materials (metal/wood/leather/food) described through bold value grouping + sparse texture marks rather than heavy detail
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