A helpful class that removes the annoyance of remembering the built in unity style strings

FullEditorStyles.cs

using UnityEngine;
using UnityEditor;

public class FullEditorStyles
{
    public static GUIStyle CNBox => new GUIStyle("CN Box");
    public static GUIStyle CNEntryInfo => new GUIStyle("CN EntryInfo");
    public static GUIStyle CNEntryWarn => new GUIStyle("CN EntryWarn");
    public static GUIStyle CNEntryError => new GUIStyle("CN EntryError");
    public static GUIStyle CNEntryBackEven => new GUIStyle("CN EntryBackEven");
    public static GUIStyle CNEntryBackodd => new GUIStyle("CN EntryBackodd");
    public static GUIStyle CNMessage => new GUIStyle("CN Message");
    public static GUIStyle CNStatusError => new GUIStyle("CN StatusError");
    public static GUIStyle CNStatusWarn => new GUIStyle("CN StatusWarn");
    public static GUIStyle CNStatusInfo => new GUIStyle("CN StatusInfo");
    public static GUIStyle CNCountBadge => new GUIStyle("CN CountBadge");
    public static GUIStyle Box => new GUIStyle("Box");
    public static GUIStyle LogStyle => new GUIStyle("LogStyle");
    public static GUIStyle WarningStyle => new GUIStyle("WarningStyle");
    public static GUIStyle ErrorStyle => new GUIStyle("ErrorStyle");
    public static GUIStyle EvenBackground => new GUIStyle("EvenBackground");
    public static GUIStyle OddBackground => new GUIStyle("OddBackground");
    public static GUIStyle MessageStyle => new GUIStyle("MessageStyle");
    public static GUIStyle StatusError => new GUIStyle("StatusError");
    public static GUIStyle StatusWarn => new GUIStyle("StatusWarn");
    public static GUIStyle StatusLog => new GUIStyle("StatusLog");
    public static GUIStyle CountBadge => new GUIStyle("CountBadge");
    public static GUIStyle InBigTitle => new GUIStyle("In BigTitle");
    public static GUIStyle MiniLabel => new GUIStyle("miniLabel");
    public static GUIStyle LargeLabel => new GUIStyle("LargeLabel");
    public static GUIStyle BoldLabel => new GUIStyle("BoldLabel");
    public static GUIStyle MiniBoldLabel => new GUIStyle("MiniBoldLabel");
    public static GUIStyle WordWrappedLabel => new GUIStyle("WordWrappedLabel");
    public static GUIStyle WordWrappedMiniLabel => new GUIStyle("WordWrappedMiniLabel");
    public static GUIStyle WhiteLabel => new GUIStyle("WhiteLabel");
    public static GUIStyle WhiteMiniLabel => new GUIStyle("WhiteMiniLabel");
    public static GUIStyle WhiteLargeLabel => new GUIStyle("WhiteLargeLabel");
    public static GUIStyle WhiteBoldLabel => new GUIStyle("WhiteBoldLabel");
    public static GUIStyle MiniTextField => new GUIStyle("MiniTextField");
    public static GUIStyle Radio => new GUIStyle("Radio");
    public static GUIStyle MiniButton => new GUIStyle("miniButton");
    public static GUIStyle MiniButtonLeft => new GUIStyle("miniButtonLeft");
    public static GUIStyle MiniButtonMid => new GUIStyle("miniButtonMid");
    public static GUIStyle MiniButtonRight => new GUIStyle("miniButtonRight");
    public static GUIStyle Toolbar => new GUIStyle("toolbar");
    public static GUIStyle Toolbarbutton => new GUIStyle("toolbarbutton");
    public static GUIStyle ToolbarPopup => new GUIStyle("toolbarPopup");
    public static GUIStyle ToolbarDropDown => new GUIStyle("toolbarDropDown");
    public static GUIStyle ToolbarTextField => new GUIStyle("toolbarTextField");
    public static GUIStyle ToolbarSeachTextField => new GUIStyle("ToolbarSeachTextField");
    public static GUIStyle ToolbarSeachTextFieldPopup => new GUIStyle("ToolbarSeachTextFieldPopup");
    public static GUIStyle ToolbarSeachCancelButton => new GUIStyle("ToolbarSeachCancelButton");
    public static GUIStyle ToolbarSeachCancelButtonEmpty => new GUIStyle("ToolbarSeachCancelButtonEmpty");
    public static GUIStyle SearchTextField => new GUIStyle("SearchTextField");
    public static GUIStyle SearchCancelButton => new GUIStyle("SearchCancelButton");
    public static GUIStyle SearchCancelButtonEmpty => new GUIStyle("SearchCancelButtonEmpty");
    public static GUIStyle HelpBox => new GUIStyle("HelpBox");
    public static GUIStyle AssetLabel => new GUIStyle("AssetLabel");
    public static GUIStyle AssetLabelPartial => new GUIStyle("AssetLabel Partial");
    public static GUIStyle AssetLabelIcon => new GUIStyle("AssetLabel Icon");
    public static GUIStyle SelectionRect => new GUIStyle("selectionRect");
    public static GUIStyle MinMaxHorizontalSliderThumb => new GUIStyle("MinMaxHorizontalSliderThumb");
    public static GUIStyle DropDownButton => new GUIStyle("DropDownButton");
    public static GUIStyle Label => new GUIStyle("Label");
    public static GUIStyle ProgressBarBack => new GUIStyle("ProgressBarBack");
    public static GUIStyle ProgressBarBar => new GUIStyle("ProgressBarBar");
    public static GUIStyle ProgressBarText => new GUIStyle("ProgressBarText");
    public static GUIStyle FoldoutPreDrop => new GUIStyle("FoldoutPreDrop");
    public static GUIStyle INTitle => new GUIStyle("IN Title");
    public static GUIStyle INTitleText => new GUIStyle("IN TitleText");
    public static GUIStyle BoldToggle => new GUIStyle("BoldToggle");
    public static GUIStyle Tooltip => new GUIStyle("Tooltip");
    public static GUIStyle NotificationText => new GUIStyle("NotificationText");
    public static GUIStyle NotificationBackground => new GUIStyle("NotificationBackground");
    public static GUIStyle MiniPopup => new GUIStyle("MiniPopup");
    public static GUIStyle TextField => new GUIStyle("textField");
    public static GUIStyle ControlLabel => new GUIStyle("ControlLabel");
    public static GUIStyle ObjectField => new GUIStyle("ObjectField");
    public static GUIStyle ObjectFieldThumb => new GUIStyle("ObjectFieldThumb");
    public static GUIStyle ObjectFieldMiniThumb => new GUIStyle("ObjectFieldMiniThumb");
    public static GUIStyle Toggle => new GUIStyle("Toggle");
    public static GUIStyle ToggleMixed => new GUIStyle("ToggleMixed");
    public static GUIStyle ColorField => new GUIStyle("ColorField");
    public static GUIStyle Foldout => new GUIStyle("Foldout");
    public static GUIStyle TextFieldDropDown => new GUIStyle("TextFieldDropDown");
    public static GUIStyle TextFieldDropDownText => new GUIStyle("TextFieldDropDownText");
    public static GUIStyle PRLabel => new GUIStyle("PR Label");
    public static GUIStyle ProjectBrowserGridLabel => new GUIStyle("ProjectBrowserGridLabel");
    public static GUIStyle ObjectPickerResultsGrid => new GUIStyle("ObjectPickerResultsGrid");
    public static GUIStyle ObjectPickerBackground => new GUIStyle("ObjectPickerBackground");
    public static GUIStyle ObjectPickerPreviewBackground => new GUIStyle("ObjectPickerPreviewBackground");
    public static GUIStyle ProjectBrowserHeaderBgMiddle => new GUIStyle("ProjectBrowserHeaderBgMiddle");
    public static GUIStyle ProjectBrowserHeaderBgTop => new GUIStyle("ProjectBrowserHeaderBgTop");
    public static GUIStyle ObjectPickerToolbar => new GUIStyle("ObjectPickerToolbar");
    public static GUIStyle PRTextField => new GUIStyle("PR TextField");
    public static GUIStyle PRPing => new GUIStyle("PR Ping");
    public static GUIStyle ProjectBrowserIconDropShadow => new GUIStyle("ProjectBrowserIconDropShadow");
    public static GUIStyle ProjectBrowserTextureIconDropShadow => new GUIStyle("ProjectBrowserTextureIconDropShadow");
    public static GUIStyle ProjectBrowserIconAreaBg => new GUIStyle("ProjectBrowserIconAreaBg");
    public static GUIStyle ProjectBrowserPreviewBg => new GUIStyle("ProjectBrowserPreviewBg");
    public static GUIStyle ProjectBrowserSubAssetBg => new GUIStyle("ProjectBrowserSubAssetBg");
    public static GUIStyle ProjectBrowserSubAssetBgOpenEnded => new GUIStyle("ProjectBrowserSubAssetBgOpenEnded");
    public static GUIStyle ProjectBrowserSubAssetBgCloseEnded => new GUIStyle("ProjectBrowserSubAssetBgCloseEnded");
    public static GUIStyle ProjectBrowserSubAssetBgMiddle => new GUIStyle("ProjectBrowserSubAssetBgMiddle");
    public static GUIStyle ProjectBrowserSubAssetBgDivider => new GUIStyle("ProjectBrowserSubAssetBgDivider");
    public static GUIStyle ProjectBrowserSubAssetExpandBtn => new GUIStyle("ProjectBrowserSubAssetExpandBtn");
}