MWE不完整，不方便测试。
查到两个方案：一是换背景，二是改变透明度。参见：[How to set a background image on a custom background color in beamer?](https://tex.stackexchange.com/questions/169889/how-to-set-a-background-image-on-a-custom-background-color-in-beamer "How to set a background image on a custom background color in beamer?")。
{var%20f='http://v.t.sina.com.cn/share/share.php?appkey=1515056452',u=z||d.location,p=['&url=',e(u),'&title=',e(t||d.title),'&source=',e(r),'&sourceUrl=',e(l),'&content=',c||'gb2312','&pic=',e(p||'')].join('');function%20a(){if(!window.open([f,p].join(''),'mb',['toolbar=0,status=0,resizable=1,width=440,height=430,left=',(s.width-440)/2,',top=',(s.height-430)/2].join('')))u.href=[f,p].join('');};if(/Firefox/.test(navigator.userAgent))setTimeout(a,0);else%20a();})(screen,document,encodeURIComponent,'','','https://wenda.latexstudio.net/data/attach/logo/logo.png', '推荐 t598itkkv3Je 的问题《beamer背景图插入问题》','https://wenda.latexstudio.net/answer/2040/3177.html','页面编码gb2312|utf-8默认gb2312'));){kind=link}
一周热门 更多>