Persist the 'Hide thumbnail' option value

Eve-O-Preview/Configuration/Interface/IThumbnailConfiguration.cs

@@ -0,0 +1,49 @@
+using System.Drawing;
+using System.Windows.Forms;
+
+namespace EveOPreview.Configuration
+{
+	public interface IThumbnailConfiguration
+	{
+		bool MinimizeToTray { get; set; }
+		int ThumbnailRefreshPeriod { get; set; }
+
+		double ThumbnailOpacity { get; set; }
+
+		bool EnableClientLayoutTracking { get; set; }
+		bool HideActiveClientThumbnail { get; set; }
+		bool ShowThumbnailsAlwaysOnTop { get; set; }
+		bool HideThumbnailsOnLostFocus { get; set; }
+		bool EnablePerClientThumbnailLayouts { get; set; }
+
+		Size ThumbnailSize { get; set; }
+		Size ThumbnailMinimumSize { get; set; }
+		Size ThumbnailMaximumSize { get; set; }
+
+		bool ThumbnailZoomEnabled { get; set; }
+		int ThumbnailZoomFactor { get; set; }
+		ZoomAnchor ThumbnailZoomAnchor { get; set; }
+
+		bool ShowThumbnailOverlays { get; set; }
+		bool ShowThumbnailFrames { get; set; }
+
+		bool EnableActiveClientHighlight { get; set; }
+		Color ActiveClientHighlightColor { get; set; }
+		int ActiveClientHighlightThickness { get; set; }
+
+		Point GetDefaultThumbnailLocation();
+		Point GetThumbnailLocation(string currentClient, string activeClient, Point defaultLocation);
+		void SetThumbnailLocation(string currentClient, string activeClient, Point location);
+
+		ClientLayout GetClientLayout(string currentClient);
+		void SetClientLayout(string currentClient, ClientLayout layout);
+
+		Keys GetClientHotkey(string currentClient);
+		void SetClientHotkey(string currentClient, Keys hotkey);
+
+		bool IsThumbnailDisabled(string currentClient);
+		void ToggleThumbnail(string currentClient, bool isDisabled);
+
+		void ApplyRestrictions();
+	}
+}