请问如何调整图例的大小？ [已关闭]

Question

Plot[{F1, F2, F3, F4, F5, F6, F7, F8, F9, F10}, {IG, 2, 6}, 
 AxesLabel -> {"\!\(\*SuperscriptBox[\(IR\), \(d\)]\)", 
   "\[CapitalDelta]\[Pi]"}, PlotRange -> All, 
 PlotLegends -> 
  Placed[{"F1", "F2", "F3", "F4", "F5", "F6", "F7", "F8", "F9", 
    "F10"}, {Center, Center}]]

双击编辑图形缩小图例的边框就导致图例显示不全，请问如何调整图例的大小，使图例中的字体和线不要那么大？（纯小白，希望大神们不吝赐教^ ^