Inline sprite, currentColor, stable names. The active set is Lucide — stroke, 24px grid, 2px stroke, symbols, ISC (lucide.dev). To rebrand, regenerate the sprite from another set and keep the i-* names.
Hover a cell for the icon's name and its container box — every glyph ships in the same box, and optical balance happens inside it; never resize an icon to "fix" its visual weight. Click to copy the name.