Added clearifying comments

Author: OssianEPPlus

src/EPPlus.DrawingRenderer/RenderItems/Textbox/RichTextFormatDrawing/IRichTextFormatDrawing.cs

@@ -9,6 +9,9 @@
 namespace EPPlus.DrawingRenderer.RenderItems.Textbox
 {
     /// <summary>
+    /// TODO: Move this to interfaces. Only here in order to not break existing references in PDF 
+    /// (This should be moved when IRichTextFormatSimple is moved)
+    /// 
     /// Rich text data for drawings
     /// </summary>
     public interface IRichTextFormatDrawing : IRichTextFormatSimple

src/EPPlus.Fonts.OpenType/Integration/DataHolders/IRichTextFormatSimple.cs

@@ -1,16 +1,12 @@
-using OfficeOpenXml.Interfaces.Fonts;
-using OfficeOpenXml.Interfaces.RichText;
-using System;
-using System.Collections.Generic;
+using OfficeOpenXml.Interfaces.RichText;
 using System.Drawing;
-using System.Linq;
-using System.Text;
 
 
 namespace EPPlus.Fonts.OpenType.Integration.DataHolders
 {
     /// <summary>
     /// TODO: Move this to interfaces. Only here in order to not break existing references in PDF
+    /// 
     /// Interface for pdf/svg/future richtext users to unify richtext styling
     /// </summary>
     public interface IRichTextFormatSimple : IRichTextFormatEssential

src/EPPlus.Fonts.OpenType/Integration/RichText/LayoutSystem.cs

@@ -20,11 +20,11 @@ public class LayoutSystem
         //The text of the entire paragraph
         //regardless of linebreaking or style runs
         string FullText;
-        public List<CharInfo> AllChars { get; private set; }= new List<CharInfo>();
+        private List<CharInfo> AllChars { get; set; }= new List<CharInfo>();
         List<int> SeparatorIndicies = new List<int>();
         List<int> ParagraphSeparatorIndicies = new List<int>();
         List<Paragraph> SubParagraphs = new List<Paragraph>();
-        public List<StyleRun> StyleRuns { get; private set; } = new List<StyleRun>();
+        private List<StyleRun> StyleRuns { get; set; } = new List<StyleRun>();
         int FullTextLength = 0;
         int FullTextLastIdx = 0;
 

src/EPPlus.Interfaces/RichText/IFontFormatBase.cs

@@ -12,7 +12,6 @@ public interface IFontFormatBase
         public FontSubFamily SubFamily { get; set; }
         public float Size { get; set; }
 
-
         /// <summary>
         /// Sets the underlying data properties to be equal to the font
         /// </summary>