About the Grid effect
Grid draws a lattice of lines every eight cells, using | for vertical lines, - for horizontal lines and + where they cross. At a steady interval the whole lattice shifts one cell diagonally, so the pattern scrolls steadily toward the top left in a seamless loop. The stepping motion is deliberate: it moves in whole characters, the way a real text terminal would, which gives it a crisp, mechanical rhythm instead of a smooth glide. The effect evokes blueprint paper, old vector-display games and the neon floor of synthwave artwork, especially in cyan or pink. Because the grid is sparse and regular, text placed on top stays perfectly readable, so it is a good default for documentation sites, technical slides and developer tool landing pages. Increase the font size for a chunkier lattice on large screens.