Anime speed lines, radial or diagonal, that close in and thicken per click; the middle stays clean for the words.

Made as a Kadal Deck premium background, it fills whatever box you give it at its real size, in light and dark, and follows your brand colour (the --deck-accent CSS variable). Settings: mode (radial: lines rush in towards a focus, an impact. Diagonal: streaks fly past, a dash), focus (radial only: where the lines point, and where the clean space sits. Put the words there), steps (intensity 0–1 before the first click, then one per click: "0.3 | 0.7 | 1". More lines, closer in; nothing moves), ink (the lines' colour, default: the theme's text colour, so dark on light and light on dark), count (how many lines at full intensity), angle (diagonal only: the streaks' angle, in degrees), flicker (the lines shimmer like hand-drawn cels, radial or fly past, diagonal; still under reduced motion and in print) and flash (an impact flash from the focus on every click). The animation pauses off screen and in background tabs, and holds still for visitors who ask for reduced motion.

What you get: a web component, one script with no framework, for a plain page, Webflow, WordPress or Framer, drawing behind your own content. A React component. Stills at 2560 x 1440 in light and dark, and transparent ones to lay over a photo. Seamless 10-second loops at 1920 x 1080, MP4 and WebM, for any video editor, and WebMs with transparency for overlays. A demo page to try the settings and print a PDF, and a README with a recipe for each.

In Kadal Deck, buying it unlocks Speed Lines in every workspace you belong to (as background pro/speedlines). Pro, Team and Lifetime plans include every premium background already.