Design Knobs Illustrations & Vectors

Retro wooden radio with detailed silver knobs. A vintage-style radio with a polished wooden casing, silver control knobs, and a frequency display, reflecting a. A vintage-style radio with a polished wooden casing, silver control knobs, and a frequency display, reflecting a nostalgic design and warm tones in a minimalist setting.

Vintage radio device, retro technology design object vector design Generative AI. A vintage radio device with knobs and dials, representing retro technology and. A vintage radio device with knobs and dials, representing retro technology and classic communication. Ideal for vintage themes and retro tech nostalgia projects vector design Generative AI

Classic Audio Mixer, Sound Production Equipment, vector design Generative AI. A classic audio mixer with knobs and ports, symbolizing sound production, music. A classic audio mixer with knobs and ports, symbolizing sound production, music mixing, and audio engineering. Ideal for recording studios, music production software, or broadcast media. Represents creative control over sound, vector design Generative AI

Vintage Radio Receiver, Classic Audio Equipment, vector design Generative AI. A clear vector icon of a vintage radio receiver with tuning knobs, symbolizing. A clear vector icon of a vintage radio receiver with tuning knobs, symbolizing classic audio equipment and timeless broadcast. This design is ideal for retro tech, music history, or nostalgic themes, conveying the enduring charm and simple elegance of old school electronics, vector design Generative AI

Audio Equalizer Controls Sound Production Icons, vector design Generative AI. A set of audio equalizer controls, including faders and knobs, representing sound. A set of audio equalizer controls, including faders and knobs, representing sound mixing interfaces. Ideal for music software, recording studios, or sound engineering. These icons provide a visual for audio adjustments and sound management, vector design Generative AI

Retro Radio Receiver with Vintage Speaker Grille, vector design Generative AI. A charming vector illustration of a retro radio receiver, featuring a classic. A charming vector illustration of a retro radio receiver, featuring a classic speaker grille and vintage control knobs. This nostalgic design evokes old-fashioned communication and timeless entertainment, perfect for historical themes, music, or broadcasting. Its clean lines and muted tones create a warm, inviting feel, vector design Generative AI

Stunning 1950s Chrome Radio A RetroModern Design Icon for Your Home. Experience the timeless elegance of this exquisite chrome radio, a true representation of. Experience the timeless elegance of this exquisite chrome radio, a true representation of mid-century modern design. Its curved lines and pristine white background create a striking visual contrast, showcasing the sleek metallic finish and meticulously detailed control knobs. The vintage radio classic aesthetic seamlessly blends with contemporary style, making it a captivating addition to any

Audio Mixer Control Panel with Sliders, vector design Generative AI. An illustration of an audio mixer control panel with multiple sliders and knobs. Represents. An illustration of an audio mixer control panel with multiple sliders and knobs. Represents sound engineering, music production, or podcasting. Ideal for media, studio, or recording related projects, offering a technical and professional aesthetic, vector design Generative AI

Sleek Automotive Control Panel with Knobs and Buttons. A close-up view of a modern vehicles central control panel, where sleek metallic knobs and minimalist. A close-up view of a modern vehicles central control panel, where sleek metallic knobs and minimalist buttons offer precise control over the cabins climate and audio systems. The sophisticated design reflects the intersection of luxury, technology, and ergonomic functionality in contemporary automotive interiors

A minimalistic control panel or interface design. Template for web online app dashboard. Set of Buttons, Dials, Knobs on neutral. A minimalistic control panel. A minimalistic control panel interface design. Template for web online app dashboard. Set of Buttons, Dials, Knobs on neutral background.

A minimalistic control panel or interface design. Template for web online app dashboard. Set of Buttons, Dials, Knobs on neutral. A minimalistic control panel. A minimalistic control panel interface design. Template for web online app dashboard. Set of Buttons, Dials, Knobs on neutral background

Vintage Radio Dial with Knobs and Retro Design Elements. Explore the intricate details of a vintage radio dial showcasing classic design elements, perfect for. Explore the intricate details of a vintage radio dial showcasing classic design elements, perfect for technology enthusiasts and retro decor lovers

Close-up of Metal Volume Knobs on Audio Mixing Equipment. Detailed close-up of metal knobs on audio mixing equipment, showcasing texture and design. Ideal for. Detailed close-up of metal knobs on audio mixing equipment, showcasing texture and design. Ideal for music technology and sound production themes

A minimalistic control panel or interface design. Template for web online app dashboard. Set of Buttons, Dials, Knobs on neutral. A minimalistic control panel. A minimalistic control panel interface design. Template for web online app dashboard. Set of Buttons, Dials, Knobs on neutral background

A minimalistic control panel or interface design. Template for web online app dashboard. Set of Buttons, Dials, Knobs on neutral. A minimalistic control panel. A minimalistic control panel interface design. Template for web online app dashboard. Set of Buttons, Dials, Knobs on neutral background

Audio equipment or receiver icon, depicting sound system , vector design Generative AI. An icon representing a piece of audio equipment, likely a receiver or. An icon representing a piece of audio equipment, likely a receiver or amplifier, with knobs and indicators. Represents sound systems, music, or electronics in design. , vector design Generative AI

Old Fashioned Radio, Retro Technology and Broadcast Media, vector design Generative AI. A detailed vector illustration of an old fashioned radio with various. A detailed vector illustration of an old fashioned radio with various knobs and dials, symbolizing retro technology and traditional broadcast media. This icon is perfect for vintage themes, music, news, and historical communication, vector design Generative AI

Simple stereo or audio player icon, depicting electronics , vector design Generative AI. A basic icon representing a stereo or audio player device with knobs and. A basic icon representing a stereo or audio player device with knobs and buttons. Represents electronics, music, sound systems, or entertainment technology in design. , vector design Generative AI

Radio Receiver Device Icon, Communication, Audio Broadcast, vector design Generative AI. A classic vector icon of a radio receiver device with tuning knobs. A classic vector icon of a radio receiver device with tuning knobs, symbolizing communication and audio broadcasting. This design conveys themes of media, sound engineering, and wireless technology. Ideal for radio stations, podcasting, or vintage electronics themes, vector design Generative AI

Classic Radio Receiver. Retro Audio Appliance Vector Illustration, vector design Generative AI. A detailed vector illustration of a classic radio receiver. A detailed vector illustration of a classic radio receiver, featuring its distinctive knobs and grille. This timeless graphic is perfect for music history projects, vintage-themed interior design, audio technology blogs, or any design celebrating the enduring charm of old-school broadcasting and digital design, vector design Generative AI

Audio Mixing Control Panel, Professional Sound Engineering, vector design Generative AI. A detailed vector illustration of an audio mixing control panel with. A detailed vector illustration of an audio mixing control panel with various knobs and faders, symbolizing professional sound engineering. This graphic is perfect for music production, podcasting, broadcasting, or audio technology. It represents intricate sound manipulation and creative control, ideal for projects focused on multimedia, entertainment, and acoustic design, vector design Generative

Retro Audio Control Panel Vector, Vintage Sound Equipment Graphic, vector design Generative AI. A sleek vector illustration of a retro audio control panel with. A sleek vector illustration of a retro audio control panel with knobs and buttons, symbolizing sound mixing. This graphic is perfect for music production, podcasting, vintage tech, or entertainment themes. It evokes nostalgia for classic audio gear and creative sound engineering, ideal for projects focused on music and media production, vector design Generative AI

Antique Radio with Dials, Nostalgic Sound Broadcast History, vector design Generative AI. A detailed vector illustration of an antique radio with visible dials. A detailed vector illustration of an antique radio with visible dials and knobs, evoking nostalgic sound, broadcast history, and vintage technology. This icon is perfect for themes of media history, retro aesthetics, sound engineering, and classic entertainment. Ideal for cultural institutions and design projects, vector design Generative AI

Vintage Audio Tuner Vector Icon. Classic electronic device graphic. vector design Generative AI. A detailed vector icon of a vintage audio tuner or ham radio. A detailed vector icon of a vintage audio tuner or ham radio. The classic design with knobs and a display is ideal for content related to retro electronics, sound engineering, broadcasting, and hobbyist radio equipment. vector design Generative AI

Electronic Control Panel, Technology Interface and Settings, vector design Generative AI. A detailed vector illustration of an electronic control panel with. A detailed vector illustration of an electronic control panel with buttons, knobs, and a screen. This icon represents technology, engineering, industrial control, settings, and complex electronic interfaces, vector design Generative AI

Bright Yellow Wooden Cabinet with Two Doors, Minimalist Design. This image showcases a charming yellow wooden cabinet, featuring a minimalist design with two. This image showcases a charming yellow wooden cabinet, featuring a minimalist design with two doors and small gold-colored knobs. Perfect for adding a pop of color to any room.

Electronic device showing sinusoid signal on screen with buttons and knobs. In flat design with long shadow

Professional audio mixer board, perfect for sound engineering. vector design Generative AI. An illustration of a professional audio mixer board, featuring. An illustration of a professional audio mixer board, featuring numerous knobs, sliders, and buttons. This image represents music production, sound engineering, broadcasting, and creative media, suitable for music studios or entertainment industry content. vector design Generative AI

A vintage television set with antenna in a retro cartoon style, vector design Generative AI. A charming vector illustration of an old-fashioned television set. A charming vector illustration of an old-fashioned television set with knobs and an antenna. This retro electronic device is perfect for designs about media history, classic TV shows, or for creating a nostalgic atmosphere. vector design Generative AI

Modern Receiver Device, Audio Equipment and Signal Processing, vector design Generative AI. A sleek, modern receiver or audio device with control knobs and. A sleek, modern receiver or audio device with control knobs and indicators, symbolizing audio technology and signal processing. This icon is perfect for electronics, sound engineering, broadcasting, or futuristic media systems, highlighting advanced functions, vector design Generative AI

Vintage Radio Player Icon, Classic Audio Entertainment Device, vector design Generative AI. A classic vintage radio player with speakers and tuning knobs. A classic vintage radio player with speakers and tuning knobs, rendered in a flat, modern vector style. Ideal for music, retro technology, broadcasting, audio streaming, and nostalgic entertainment concepts. This icon adds a touch of classic charm to digital and print media, vector design Generative AI

Professional Audio Mixer Console, Sound Engineering and Production, vector design Generative AI. A detailed illustration of a professional audio mixer console. A detailed illustration of a professional audio mixer console with sliders and knobs. Represents sound engineering, music production, and live audio mixing. Ideal for recording studios, broadcasting, and podcasting. Essential for quality sound output, vector design Generative AI

Control Panel for Lab Equipment. Scientific measurement device icon. vector design Generative AI. A detailed vector of a control panel for technical or. A detailed vector of a control panel for technical or scientific equipment. Featuring knobs, a screen, and buttons, it's perfect for illustrating lab work, industrial controls, engineering, and precision measurement. vector design Generative AI

Audio mixer panel, sound settings and control interface vector design Generative AI. Audio mixer panel with sliders and knobs, representing sound settings, audio. Audio mixer panel with sliders and knobs, representing sound settings, audio control interfaces, and music production tools. Ideal for audio software, music production blogs, and audio equipment guides vector design Generative AI

Stylish pink synthesizer with black keys and knobs in a modern design. A modern pink synthesizer showcases black keys and various control knobs, designed for. A modern pink synthesizer showcases black keys and various control knobs, designed for musicians.

Classic Brown Portable Radio Vector Illustration, vector design Generative AI. A detailed vector illustration of a classic brown portable radio, featuring a. A detailed vector illustration of a classic brown portable radio, featuring a timeless design with a grille and knobs. This nostalgic graphic is perfect for vintage media, audio themes, or adding a retro aesthetic to any digital or print project, vector design Generative AI

Antique Wooden Radio Vector Art, Classic Home Decor, vector design Generative AI. An antique-style wooden radio, depicted with intricate details in a vector. An antique-style wooden radio, depicted with intricate details in a vector illustration. This piece exudes a classic, cozy atmosphere, perfect for themes of home decor, vintage technology, or historical media. It features a rich brown finish and traditional knobs, making it a timeless graphic asset for various design applications, vector design Generative AI

Timeless Vintage Radio Receiver, Broadcasting Nostalgia and Classic Tunes, vector design Generative AI. A timeless vector illustration of a vintage radio. A timeless vector illustration of a vintage radio receiver, detailed with its characteristic grille and knobs. Perfect for retro entertainment, audio history, quaint home decor, and nostalgic design projects. Symbolizes a connection to the past through sound, vector design Generative AI

Classic Blue Portable Radio Retro Sound System, vector design Generative AI. A vibrant vector illustration of a classic blue portable radio, featuring a. A vibrant vector illustration of a classic blue portable radio, featuring a traditional grill and control knobs. This nostalgic sound system brings a touch of retro charm, ideal for vintage-themed designs, music history content, or as a playful element in contemporary media, rendered in a clean flat style, vector design Generative AI

Vintage television set illustration, retro media, vector design Generative AI. An illustration of a vintage television set with knobs and antenna. This image. An illustration of a vintage television set with knobs and antenna. This image represents retro technology, media history, entertainment, or nostalgia. Suitable for designs related to historical themes, television shows, or adding a touch of vintage charm. High quality digital art, vector design Generative AI

Old-Fashioned Tabletop Radio, Retro Sound Device, vector design Generative AI. A charming vector illustration of an old-fashioned tabletop radio, featuring. A charming vector illustration of an old-fashioned tabletop radio, featuring classic knobs and a warm brown casing. Ideal for vintage technology themes, historical documentaries, or retro-inspired branding. This icon symbolizes classic broadcasting and timeless design appeal, vector design Generative AI

Retro radio receiver, ideal for vintage aesthetics and classic sound themes, vector design Generative AI. A stylish vector illustration of a retro radio receiver. A stylish vector illustration of a retro radio receiver, with its distinctive knobs and classic design. This iconic appliance evokes nostalgia for vintage technology and classic sound. Ideal for antique shop branding, music history projects, decorative elements, or designs that appreciate mid-century aesthetics. Its timeless appeal makes it an engaging visual for anyone fond of historical

Close up of an electronic music synthesizer with control knobs and audio jacks. A detailed close-up of a handmade modular synthesizer showcasing various knobs. A detailed close-up of a handmade modular synthesizer showcasing various knobs, jacks, and electronic components. The wooden enclosure and the silver panel provide a unique, handcrafted aesthetic suitable for music production or electronic design projects

Retro Wooden Radio Receiver Illustration, Nostalgic Design, vector design Generative AI. A classic wooden radio receiver, rendered in a nostalgic flat vector. A classic wooden radio receiver, rendered in a nostalgic flat vector style. This illustration features a detailed front panel with knobs, a tuning dial, and speaker grilles, evoking a sense of vintage charm. Ideal for projects related to audio, retro decor, communication history, or media. Perfect for websites, educational materials, and graphic design, vector design Generative AI

Audio Mixer Control Panel, Sound Engineering Interface, vector design Generative AI. An illustration of an audio mixer control panel with faders and knobs. An illustration of an audio mixer control panel with faders and knobs, essential for sound engineering and music production. This detailed graphic is ideal for audio technology, recording studios, or educational content on sound mixing. It represents the intricate controls used to balance, route, and shape audio signals for various applications, vector design Generative AI

Colorful Wooden Puzzle Cube with Knobs and a Handle on Top Isolated on White Background. A colorful wooden puzzle cube with knobs and a handle on top, isolated. A colorful wooden puzzle cube with knobs and a handle on top, isolated against a white background. The vivid colors and playful design are prominently displayed.

A Variety of Cabinet Hardware Organized in Wooden Tray for Interior Design Projects. An organized wooden tray displays a variety of cabinet hardware, including. An organized wooden tray displays a variety of cabinet hardware, including knobs, drawer pulls, and hinges, ideal for interior design and renovation projects

Olive green chest of drawers with brass knobs in a studio setting on white background. A tall chest of drawers, painted in a muted olive green, stands against a. A tall chest of drawers, painted in a muted olive green, stands against a crisp white background. Each drawer is adorned with simple brass knobs, offering a touch of elegance to the minimalist design. It is a practical storage solution blending function and style for any modern home.

Hand Operating Audio Mixer Console, Sound Production Control, vector design Generative AI. A detailed vector illustration of a hand expertly operating the faders. A detailed vector illustration of a hand expertly operating the faders and knobs of an audio mixer console. This graphic is ideal for portraying sound engineering, music production, or live event management. Perfect for music studios, DJ promotions, educational content on audio, and multimedia design projects, vector design Generative AI

A Timeless Piece of Nostalgia Vintage Retro Radio Receiver Minimalist Design for Modern Decor. Step back in time with this captivating image of a classic vintage. Step back in time with this captivating image of a classic vintage retro radio receiver. Set against a pristine white backdrop, the radio's ornate design and warm aesthetic stand out beautifully. The simple composition allows the radio's intricate details to take center stage, showcasing the craftsmanship and artistry of a bygone era. From the smooth curves of the cabinet to the delicate knobs

Golden Steering Wheel Icon with Spokes and Knobs on Transparent Background for Nautical Design. This image features a golden steering wheel icon, symbolizing. This image features a golden steering wheel icon, symbolizing nautical themes and maritime navigation. The wheel is designed with spokes and knobs, showcasing a classic and retro wooden style. Its shiny, metallic surface catches the light and enhances its elegant appearance, making it a striking element for any nautical design. The transparency of the background allows for versatile use in various applications. Created with AI, this image perfectly embodies the spirit of adventure and control associated with the sea.

Illuminated console panel with glowing knobs, buttons, and accent lights showcasing tech detail. Close-up of a black console panel featuring glowing orange. Close-up of a black console panel featuring glowing orange accent lights, knobs, and buttons, highlighting modern technology and detailed design in low light conditions

Two knobs with contrasting colors on a flat surface, suitable for illustration or design projects. AI generated

Red electric guitar with a solid body design, featuring a dark brown fretboard and six tuning pegs. Two humbucker pickups are mounted on a black pickguard. The

A Retro Orange Analog Radio Brochure A Detailed Look at Vintage Audio Design and Collectible Appeal. This captivating image showcases a vintage orange analog. This captivating image showcases a vintage orange analog radio brochure, perfectly capturing the retro design and nostalgic aesthetic of classic audio equipment. The rich orange tones and detailed typography evoke a sense of warmth and simplicity, characteristic of mid-century modern design. Notice the intricate details of the radio's knobs and dials, hinting at the craftsmanship and engineering

Colorful Weathered Wooden Planks with Knobs for Rustic Interior and Exterior Design Generative AI. Vibrant vertical wooden planks in shades of yellow, blue, red. Vibrant vertical wooden planks in shades of yellow, blue, red, and turquoise, each adorned with a black knob, showcasing a rustic and weathered texture. ideal for interior and exterior design themes, emphasizing vintage aesthetics. Generative AI

Detailed Medical Monitor with Gray Frame Buttons and Knobs on White Background Electronic Display. A detailed shot of a medical monitor, showcasing its gray. A detailed shot of a medical monitor, showcasing its gray frame, dark screen, and array of buttons and knobs set against a clean white backdrop. It highlights the crisp design and functional elements

White wall-mounted air conditioner with silver details and control knobs on a light gray background. A white wall-mounted air conditioner is depicted against a. A white wall-mounted air conditioner is depicted against a light gray background. The appliance features silver details, including vents and control knobs. The composition is clean and minimalist, highlighting the product's design. The image is a studio shot with a side view of the air conditioner

Retro vintage television with blank screen. Brown wooden case with knobs. Empty screen for design or video. Nostalgia, classic,. Retro vintage television with. Retro vintage television with blank screen. Brown wooden case with knobs. Empty screen for design or video. Nostalgia, classic old tech entertainment media concept.

Close-up of modern dark gray kitchen cabinets with golden knobs. Stylish design with accent detail. Interior home decor with. Wooden counter top. Contemporary. Close-up of modern dark gray kitchen cabinets with golden knobs. Stylish design with accent detail. Interior home decor with, wooden counter top. Contemporary furniture detail. Soft.

Elevate Your Cooking Space with This Sleek Silver Oven Featuring Black Knobs A Contemporary Kitchen Appliance for. Introducing a stunning silver oven, a perfect. Introducing a stunning silver oven, a perfect addition to any contemporary kitchen. Its sleek, minimalist design, accented by elegant black knobs, effortlessly blends into modern kitchen styles. This high-end cooking appliance is more than just a functional piece it's a statement of refined taste, seamlessly integrated into the overall kitchen design. The smooth, polished silver finish creates a

Charming Pink Concrete Outdoor Control Box MossCovered and Decorated with Vintage Knobs for a Rustic Garden Accent. This captivating pink concrete outdoor. This captivating pink concrete outdoor control box is a beautiful blend of functionality and artistic flair. Its charming, vintage-inspired design, complete with moss-covered surfaces and decorative knobs, transforms a practical utility element into an attractive landscape feature. The vibrant pink hue stands out against lush greenery, providing a striking focal point in any garden or outdoor

A modern stainless steel microwave oven with sleek design, featuring transparent door and control knobs.

Modern white six-drawer dresser with black knobs, elegant minimalist design. Furniture piece isolated on clean white background,. Contemporary style. Perfect. Modern white six-drawer dresser with black knobs, elegant minimalist design. Furniture piece isolated on clean white background, contemporary style. Perfect for bedroom, living room.

Red mid century modern bedside table with brass knobs and tapered wooden legs. Minimalist bedroom furniture storage for modern. Home, decor and interior design

Close-up of sleek stainless steel kitchen range with glossy, reflective surface. Features modern design, five burners, control. Knobs. High-end appliance offers. Close-up of sleek stainless steel kitchen range with glossy, reflective surface. Features modern design, five burners, control knobs. High-end appliance offers durability, functionality.

Modern black glass electric stove on white kitchen counter. Cooktop appliance with knobs. Contemporary design for home interior. Cooking surface detail

A classic wooden dresser with multiple drawers and ornate knobs, perfect for a vintage-inspired interior design or. Antique store display. AI generated

Charming 3d retro television icon with antenna and control knobs title should be unique, creative and subject oriented. A delightful 3D rendered vintage. A delightful 3D rendered vintage television icon, featuring a classic design with illuminated screen, dual antennae, and prominent control knobs, perfect for nostalgic or retro themes

Photorealistic image of a portable drawer divider with foldable design on a white background. Compact drawer organizer with a sleek, foldable design on a white. Compact drawer organizer with a sleek, foldable design on a white surface. It features two pull-out drawers with metallic knobs and a collapsible structure for portability. The exterior is smooth and minimalistic, with a rounded-edge design. Light and shadows accentuate its modern aesthetic. Ideal for organizing small items in various settings.

A camera quick-release plate and clamp with red adjustment knobs, designed for securely mounting cameras on tripods, highlighting. Its functionality and robust. A camera quick-release plate and clamp with red adjustment knobs, designed for securely mounting cameras on tripods, highlighting its functionality and robust design. Isolate on white background

A camera quick-release plate and clamp with red adjustment knobs, designed for securely mounting cameras on tripods, highlighting. Its functionality and robust. A camera quick-release plate and clamp with red adjustment knobs, designed for securely mounting cameras on tripods, highlighting its functionality and robust design. Isolate on white background

Modern kitchen with a sleek design. Features a large granite-topped island with a built-in sink and tall, curved faucet. The countertop includes a chopping

A minimalistic control panel or interface design. Template for web online app dashboard. Set of Buttons, Dials, Knobs on neutral. A minimalistic control panel. A minimalistic control panel interface design. Template for web online app dashboard. Set of Buttons, Dials, Knobs on neutral background

A minimalistic control panel or interface design. Template for web online app dashboard. Set of Buttons, Dials, Knobs on neutral. A minimalistic control panel. A minimalistic control panel interface design. Template for web online app dashboard. Set of Buttons, Dials, Knobs on neutral background.

A minimalistic control panel or interface design. Template for web online app dashboard. Set of Buttons, Dials, Knobs on neutral. A minimalistic control panel. A minimalistic control panel interface design. Template for web online app dashboard. Set of Buttons, Dials, Knobs on neutral background

A minimalistic control panel or interface design. Template for web online app dashboard. Set of Buttons, Dials, Knobs on neutral. A minimalistic control panel. A minimalistic control panel interface design. Template for web online app dashboard. Set of Buttons, Dials, Knobs on neutral background.

A minimalistic control panel or interface design. Template for web online app dashboard. Set of Buttons, Dials, Knobs on neutral. A minimalistic control panel. A minimalistic control panel interface design. Template for web online app dashboard. Set of Buttons, Dials, Knobs on neutral background

A minimalistic control panel or interface design. Template for web online app dashboard. Set of Buttons, Dials, Knobs on neutral. A minimalistic control panel. A minimalistic control panel interface design. Template for web online app dashboard. Set of Buttons, Dials, Knobs on neutral background.

A minimalistic control panel or interface design. Template for web online app dashboard. Set of Buttons, Dials, Knobs on neutral. A minimalistic control panel. A minimalistic control panel interface design. Template for web online app dashboard. Set of Buttons, Dials, Knobs on neutral background