Replaced color usage with OpenTK's implementation.

RecrownedAthenaeum/Graphics/UI/SkinSystem/Definitions/ButtonSkinDefinition.cs

@@ -0,0 +1,28 @@
+using RecrownedAthenaeum.Graphics.UI.Modular.Modules.Interactive;
+
+namespace RecrownedAthenaeum.Graphics.UI.SkinSystem.Definitions
+{
+    /// <summary>
+    /// Skin definition for a button.
+    /// </summary>
+    public class ButtonSkinDefinition : SkinDefinitionData
+    {
+        /// <summary>
+        /// Names for the regions in the texture atlas respectively.
+        /// </summary>
+        public string upRegion, downRegion, disabledRegion, selectedRegion;
+
+        /// <summary>
+        /// Constructs the definition with minimum requirements.
+        /// </summary>
+        /// <param name="downRegion">Name of region specifying the texture shown for when the button is pressed down.</param>
+        /// <param name="upRegion">Name of region specifying the texture shown for when the button is not pressed.</param>
+        public ButtonSkinDefinition(string downRegion, string upRegion)
+        {
+            UIModuleType = typeof(Button);
+            this.downRegion = downRegion;
+            this.upRegion = upRegion;
+        }
+
+    }
+}

RecrownedAthenaeum/Graphics/UI/SkinSystem/Definitions/SkinDefinition.cs

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+using System;
+
+namespace RecrownedAthenaeum.Graphics.UI.SkinSystem.Definitions
+{
+    /// <summary>
+    /// A definition containing the data for the skin system. Needs to follow data transfer object model.
+    /// </summary>
+    public abstract class SkinDefinitionData
+    {
+        /// <summary>
+        /// The full name of the UI module this definition defines.
+        /// </summary>
+        public string uiModuleTypeFullName;
+        
+        /// <summary>
+        /// Sets the module type by setting <see cref="uiModuleTypeFullName"/>.
+        /// </summary>
+        public Type UIModuleType { set { uiModuleTypeFullName = value.FullName; } }
+    }
+}

RecrownedAthenaeum/Graphics/UI/SkinSystem/Definitions/TextButtonSkinDefinition.cs

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+using RecrownedAthenaeum.Graphics.UI.Modular.Modules.Interactive;
+
+namespace RecrownedAthenaeum.Graphics.UI.SkinSystem.Definitions
+{
+    /// <summary>
+    /// Definition for a text button for a skin theme.
+    /// </summary>
+    public class TextButtonSkinDefinition : ButtonSkinDefinition
+    {
+        /// <summary>
+        /// Name of color from the skin to use for the font.
+        /// </summary>
+        public string fontColor;
+
+        /// <summary>
+        /// Creates this definition with the most minimal requirements.
+        /// </summary>
+        /// <param name="downRegion">Texture region from skin that represents when the button is pressed down.</param>
+        /// <param name="upRegion">The texture region that represents when the button is not pressed.</param>
+        public TextButtonSkinDefinition(string downRegion, string upRegion) : base(downRegion, upRegion)
+        {
+            UIModuleType = typeof(TextButton);
+        }
+    }
+}

RecrownedAthenaeum/Graphics/UI/SkinSystem/Definitions/UIScrollableSkinDefinition.cs

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+using RecrownedAthenaeum.Graphics.UI.Modular.Modules;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace RecrownedAthenaeum.Graphics.UI.SkinSystem.Definitions
+{
+    /// <summary>
+    /// Skin definition of a scroll module.
+    /// </summary>
+    public class UIScrollableSkinDefinition : SkinDefinitionData
+    {
+        /// <summary>
+        /// Name of the region that specifies the texture needed.
+        /// </summary>
+        public string horizontalBar, verticalBar, horizontalBarTrack, verticalBarTrack, background;
+
+        /// <summary>
+        /// Instantiates the definition with the minimum requirements.
+        /// </summary>
+        /// <param name="horizontalBar">Name of the region used by the skin that defines what the horizontal scroll bar looks like.</param>
+        /// <param name="verticalBar">Name of the region used by the skin that defines what the vertical scroll bar looks like.</param>
+        public UIScrollableSkinDefinition(string horizontalBar, string verticalBar)
+        {
+            this.horizontalBar = horizontalBar;
+            this.verticalBar = verticalBar;
+            UIModuleType = typeof(UIScrollable);
+        }
+    }
+}