{ pkgs, ... }:
{
  programs.helix = {
    enable = true;
    package = pkgs.helix;
    settings = {
      theme = "my_theme";
      editor = {
        cursor-shape = {
          insert = "bar";
          normal = "block";
          select = "underline";
        };

        file-picker = {
          hidden = false;
        };

        # wrapping!!
        soft-wrap.enable = true;
      };
    };

    languages = {
      language = [
        {
          name = "rust";
          auto-format = true;
        }
      ];
    };

    themes = {
      # modified fleet_dark theme
      my_theme =
        let
          white = "#ffffff";
          gray-120 = "#d1d1d1";
          gray-110 = "#c2c2c2";
          gray-100 = "#a0a0a0";
          gray-90 = "#898989";
          gray-80 = "#767676";
          gray-70 = "#5d5d5d";
          gray-60 = "#484848";
          gray-50 = "#383838";
          gray-40 = "#333333";
          gray-30 = "#2d2d2d";
          gray-20 = "#292929";
          gray-15 = "#1F1F1F";
          gray-10 = "#181818";
          black = "#000000";
          blue-110 = "#6daaf7";
          blue-100 = "#4d9bf8";
          blue-90 = "#3691f9";
          blue-80 = "#1a85f6";
          blue-70 = "#0273eb";
          blue-60 = "#0c6ddd";
          blue-50 = "#195eb5";
          blue-40 = "#194176";
          blue-30 = "#163764";
          blue-20 = "#132c4f";
          blue-10 = "#0b1b32";
          red-80 = "#ec7388";
          red-70 = "#ea4b67";
          red-60 = "#d93953";
          red-50 = "#ce364d";
          red-40 = "#c03248";
          red-30 = "#a72a3f";
          red-20 = "#761b2d";
          red-10 = "#390813";
          green-50 = "#4ca988";
          green-40 = "#3ea17f";
          green-30 = "#028764";
          green-20 = "#134939";
          green-10 = "#081f19";
          yellow-60 = "#f8ab17";
          yellow-50 = "#e1971b";
          yellow-40 = "#b5791f";
          yellow-30 = "#7c511a";
          yellow-20 = "#5a3a14";
          yellow-10 = "#281806";
          purple-20 = "#c07bf3";
          purple-10 = "#b35def";

          blue = "#87C3FF";
          blue-light = "#ADD1DE";
          coral = "#CC7C8A";
          cyan = "#82D2CE";
          cyan-dark = "#779E9E";
          lime = "#A8CC7C";
          orange = "#E09B70";
          pink = "#E394DC";
          violet = "#AF9CFF";
          yellow = "#EBC88D";
        in
        {
          "attribute" = lime;
          "type" = blue;
          "type.return" = blue-light;
          "type.parameter" = blue-light;
          "constructor" = yellow;
          "constant" = violet;
          "constant.builtin.boolean" = cyan;
          "constant.character" = yellow;
          "constant.character.escape" = cyan;
          "constant.numeric" = yellow;
          "string" = pink;
          "string.regexp" = cyan;
          "string.special" = {
            fg = yellow;
            modifiers = [ "underlined" ];
          }; # .path / .url / .symbol

          "comment" = gray-90; # .line
          # "comment.block" = {} # .documentation
          "variable" = gray-120; # .builtin
          "variable.builtin" = {
            fg = coral;
          };
          # "variable.other" = {} # .member
          "variable.other.member" = violet;
          "label" = yellow;
          "keyword" = cyan; # .operator / .directive / .function
          "function" = yellow;
          "function.declaration" = "#EFEFEF";
          "function.macro" = lime;
          "function.builtin" = lime;
          "function.special" = lime;
          #"function.declaration.method" = { fg = "lightest", modifiers = ["bold"] } #depends on #4892
          "tag" = blue;
          "special" = lime;
          "namespace" = blue;

          # used in theming
          # "markup" = {} # .normal / .quote / .raw
          # "markup.normal" = {} # .completion / .hover
          "markup.bold" = {
            modifiers = [ "bold" ];
          };
          "markup.italic" = {
            modifiers = [ "italic" ];
          };
          "markup.strikethrough" = {
            modifiers = [ "crossed_out" ];
          };
          "markup.heading" = {
            fg = cyan;
            modifiers = [ "bold" ];
          }; # .marker / .1 / .2 / .3 / .4 / .5 / .6
          "markup.list" = pink; # .unnumbered / .numbered
          "markup.list.numbered" = cyan;
          "markup.list.unnumbered" = cyan;
          # "markup.link" = "green"
          "markup.link.url" = {
            fg = pink;
            modifiers = [
              "italic"
              "underlined"
            ];
          };
          "markup.link.text" = cyan;
          "markup.link.label" = purple-20;
          "markup.quote" = pink;
          "markup.raw" = pink;
          "markup.raw.inline" = cyan; # .completion / .hover
          "markup.raw.block" = "#EB83E2";

          "diff.plus" = green-50;
          "diff.minus" = red-50;
          "diff.delta" = blue-80;

          # ui specific
          # "ui.background" = { bg = gray-10; }; # .separator
          "ui.background" = { };
          "ui.statusline" = {
            fg = gray-120;
            bg = gray-20;
          }; # .inactive / .normal / .insert / .select
          "ui.statusline.normal" = {
            fg = gray-120;
            bg = gray-20;
          };
          "ui.statusline.inactive" = {
            fg = gray-90;
          };
          "ui.statusline.insert" = {
            fg = gray-20;
            bg = blue-90;
          };
          "ui.statusline.select" = {
            fg = gray-20;
            bg = yellow-60;
          };

          "ui.cursor" = {
            modifiers = [ "reversed" ];
          }; # .insert / .select / .match / .primary
          "ui.cursor.match" = {
            bg = blue-30;
          }; # .insert / .select / .match / .primary
          "ui.selection" = {
            bg = gray-50;
          }; # .primary
          "ui.selection.primary" = {
            bg = blue-40;
          };

          "ui.cursorline" = {
            bg = gray-15;
          };
          "ui.linenr" = gray-70;
          "ui.linenr.selected" = gray-110;

          "ui.popup" = {
            fg = gray-120;
            bg = gray-20;
          }; # .info
          "ui.window" = {
            fg = gray-50;
          };
          "ui.help" = {
            fg = gray-120;
            bg = gray-20;
          };
          "ui.menu" = {
            fg = gray-120;
            bg = gray-20;
          }; # .selected
          "ui.menu.selected" = {
            fg = white;
            bg = blue-40;
          }; # .selected
          # Calculated as #ffffff with 30% opacity
          "ui.menu.scroll" = {
            fg = "#dfdfdf";
          };

          "ui.text" = gray-120; # .focus / .info
          "ui.text.focus" = {
            fg = white;
            bg = blue-40;
          };

          "ui.virtual" = gray-90; # .whitespace
          "ui.virtual.inlay-hint" = {
            fg = gray-70;
          };
          "ui.virtual.ruler" = {
            bg = gray-20;
          };

          "hint" = gray-80;
          "info" = "#A366C4";
          "warning" = "#FACb66";
          "error" = "#FF5269";

          "diagnostic.hint" = {
            underline = {
              color = gray-80;
              style = "line";
            };
          };
          "diagnostic.info" = {
            underline = {
              color = "#A366C4";
              style = "line";
            };
          };
          "diagnostic.warning" = {
            underline = {
              color = "#FACB66";
              style = "line";
            };
          };
          "diagnostic.error" = {
            underline = {
              color = "#FF5269";
              style = "line";
            };
          };
          "diagnostic.unnecessary" = {
            modifiers = [ "dim" ];
          };
          "diagnostic.deprecated" = {
            modifiers = [ "crossed_out" ];
          };
        };
    };
  };
}