%20-%20https://sketchapp.com%20--%3e%3ctitle%3e形状%3c/title%3e%3cdesc%3eCreated%20with%20Sketch.%3c/desc%3e%3cg%20id='页面1'%20stroke='none'%20stroke-width='1'%20fill='none'%20fill-rule='evenodd'%3e%3cg%20id='大兔搜索图片页-英文版'%20transform='translate(-244.000000,%20-22.000000)'%20fill='%23767676'%20fill-rule='nonzero'%3e%3cg%20id='大作顶栏-跟屏'%3e%3cg%20id='搜索框'%20transform='translate(220.000000,%2011.000000)'%3e%3cg%20id='搜索按键'%20transform='translate(24.000000,%2011.000000)'%3e%3cpath%20d='M11.4351058,10.0628931%20L10.7124071,10.0628931%20L10.4562607,9.8158948%20C11.352773,8.77301315%2011.89251,7.41909663%2011.89251,5.946255%20C11.89251,2.66209262%209.23041738,0%205.946255,0%20C2.66209262,0%200,2.66209262%200,5.946255%20C0,9.23041738%202.66209262,11.89251%205.946255,11.89251%20C7.41909663,11.89251%208.77301315,11.352773%209.8158948,10.4562607%20L10.0628931,10.7124071%20L10.0628931,11.4351058%20L14.6369354,16%20L16,14.6369354%20L11.4351058,10.0628931%20Z%20M5.946255,10.0628931%20C3.66838193,10.0628931%201.82961692,8.22412807%201.82961692,5.946255%20C1.82961692,3.66838193%203.66838193,1.82961692%205.946255,1.82961692%20C8.22412807,1.82961692%2010.0628931,3.66838193%2010.0628931,5.946255%20C10.0628931,8.22412807%208.22412807,10.0628931%205.946255,10.0628931%20Z'%20id='形状'%3e%3c/path%3e%3c/g%3e%3c/g%3e%3c/g%3e%3c/g%3e%3c/g%3e%3c/svg%3e)
%20-%20https://sketchapp.com%20--%3e%3ctitle%3e路径%3c/title%3e%3cdesc%3eCreated%20with%20Sketch.%3c/desc%3e%3cg%20id='页面1'%20stroke='none'%20stroke-width='1'%20fill='%23333333'%3e%3cg%20id='图意搜索2'%20transform='translate(-258.000000,%20-190.000000)'%20fill-rule='nonzero'%3e%3cg%20id='编组-26'%20transform='translate(258.000000,%20186.000000)'%3e%3cg%20id='编组-19'%3e%3cpath%20d='M11.3793501,11%20C11.2184103,11%2011.0575763,10.9353093%2010.9360197,10.8063021%20L6,5.56791848%20L1.06398812,10.8063021%20C0.824070393,11.0609268%200.431064101,11.0650429%200.186257866,10.8154807%20C-0.0585907019,10.5658966%20-0.0625480588,10.157172%200.177411997,9.9025253%20L5.55671586,4.19369791%20C5.67346862,4.0698193%205.83324448,4%206,4%20C6.16676336,4%206.32656037,4.06981928%206.44329198,4.19369791%20L11.8225958,9.9025253%20C12.0625559,10.157172%2012.0585774,10.5658966%2011.81375,10.8154807%20C11.6929552,10.938611%2011.5360997,11%2011.3793501,11%20Z'%20id='路径'%20transform='translate(6.000000,%207.500000)%20scale(1,%20-1)%20translate(-6.000000,%20-7.500000)%20'%3e%3c/path%3e%3c/g%3e%3c/g%3e%3c/g%3e%3c/g%3e%3c/svg%3e)
Quick answer：Acid gradient posters are a style of poster design characterized by their vivid and intense color gradients, often incorporating bright, contrasting colors reminiscent of the 1960s and 1970s counterculture movement. These posters are known for their dynamic, swirling patterns and abstract imagery, typically used for music, art, and entertainment events.
