简约风黑白配色增长项目管理文档报告图标元素

minimalist icon design, black background, four white line and shape circular icons evenly distributed in 2x2 layout, top left icon shows rising bar chart and arrow, top right icon displays funnel, smiley face and dollar sign, bottom left icon contains three gears, bottom right icon depicts a person working at a computer, conveys concepts of data ysis, financial management, mechanical operation and office work 黑色图标透明底色的PNG格式 --aspect 3:4