My Alfred 4 theme.

minimal-2021.alfredappearance

{
  "alfredtheme" : {
    "result" : {
      "textSpacing" : 5,
      "subtext" : {
        "size" : 16,
        "colorSelected" : "#FEFFFEC4",
        "font" : "Manrope Medium",
        "color" : "#C6C6C665"
      },
      "shortcut" : {
        "size" : 18,
        "colorSelected" : "#FFFFFFFF",
        "font" : "Manrope Medium",
        "color" : "#FFFFFFFF"
      },
      "backgroundSelected" : "#0000001A",
      "text" : {
        "size" : 20,
        "colorSelected" : "#FEFFFEFF",
        "font" : "Manrope Medium",
        "color" : "#D7D7D7E5"
      },
      "iconPaddingHorizontal" : 13,
      "roundness" : 0,
      "paddingVertical" : 12,
      "iconSize" : 48
    },
    "search" : {
      "backgroundSelected" : "#FFFFFFFF",
      "paddingHorizontal" : 8,
      "spacing" : 0,
      "text" : {
        "size" : 40,
        "colorSelected" : "#000000FF",
        "font" : "Manrope Regular",
        "color" : "#F2F2F2FF"
      },
      "background" : "#00000000",
      "roundness" : 0,
      "paddingVertical" : 16
    },
    "window" : {
      "color" : "#171717E5",
      "paddingHorizontal" : 15,
      "width" : 698,
      "borderPadding" : 0,
      "borderColor" : "#171717EC",
      "blur" : 40,
      "roundness" : -38,
      "paddingVertical" : 11
    },
    "credit" : "Marius Kroh",
    "separator" : {
      "color" : "#CBCBCBF3",
      "thickness" : 0
    },
    "scrollbar" : {
      "color" : "#7A7A7AFF",
      "thickness" : 2
    },
    "name" : "Minimal 2021 by Marius Kroh, based on Minimal 2019 by Felix Queisler"
  }
}

Manrope is an Open Source font and can be downloaded here