misskey/packages/frontend/src/scripts/mfm-tags.ts

export const MFM_TAGS = ['tada', 'jelly', 'twitch', 'shake', 'spin', 'jump', 'bounce', 'flip', 'x2', 'x3', 'x4', 'scale', 'position', 'fg', 'bg', 'font', 'blur', 'rainbow', 'sparkle', 'rotate'];