feat: add imgui color helper

Dalamud/Interface/Colors/ColorDemoWindow.cs

@@ -0,0 +1,61 @@
+using System.Collections.Generic;
+using System.Linq;
+using System.Numerics;
+
+using Dalamud.Interface.Windowing;
+using ImGuiNET;
+
+namespace Dalamud.Interface.Colors
+{
+    /// <summary>
+    /// color Demo Window to view custom ImGui colors.
+    /// </summary>
+    internal class ColorDemoWindow : Window
+    {
+        private readonly List<KeyValuePair<string, Vector4>> colors;
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="ColorDemoWindow"/> class.
+        /// </summary>
+        public ColorDemoWindow()
+            : base("Dalamud Colors Demo")
+        {
+            this.Size = new Vector2(600, 500);
+            this.SizeCondition = ImGuiCond.FirstUseEver;
+            this.colors = new List<KeyValuePair<string, Vector4>>
+            {
+                Demo("White", ImGuiColors.White),
+                Demo("DalamudRed", ImGuiColors.DalamudRed),
+                Demo("DalamudGrey", ImGuiColors.DalamudGrey),
+                Demo("DalamudGrey2", ImGuiColors.DalamudGrey2),
+                Demo("DalamudGrey3", ImGuiColors.DalamudGrey3),
+                Demo("DalamudWhite", ImGuiColors.DalamudWhite),
+                Demo("DalamudWhite2", ImGuiColors.DalamudWhite2),
+                Demo("DalamudOrange", ImGuiColors.DalamudOrange),
+                Demo("TankBlue", ImGuiColors.TankBlue),
+                Demo("HealerGreen", ImGuiColors.HealerGreen),
+                Demo("DPSRed", ImGuiColors.DPSRed),
+            };
+            this.colors = this.colors.OrderBy(colorDemo => colorDemo.Key).ToList();
+        }
+
+        /// <inheritdoc/>
+        public override void Draw()
+        {
+            ImGui.BeginChild("color_scrolling", new Vector2(0, 0), false, ImGuiWindowFlags.AlwaysVerticalScrollbar | ImGuiWindowFlags.HorizontalScrollbar);
+            ImGui.Text("This is a collection of UI colors you can use in your plugin.");
+            ImGui.Separator();
+            foreach (var color in this.colors)
+            {
+                ImGui.TextColored(color.Value, color.Key);
+            }
+
+            ImGui.EndChild();
+        }
+
+        private static KeyValuePair<string, Vector4> Demo(string name, Vector4 color)
+        {
+            return new KeyValuePair<string, Vector4>(name, color);
+        }
+    }
+}

Dalamud/Interface/Colors/ImGuiColors.cs

@@ -0,0 +1,65 @@
+using System.Numerics;
+
+namespace Dalamud.Interface.Colors
+{
+    /// <summary>
+    /// Class containing frequently used colors for easier reference.
+    /// </summary>
+    public static class ImGuiColors
+    {
+        /// <summary>
+        /// Gets white color.
+        /// </summary>
+        public static Vector4 White { get; } = new Vector4(255, 255, 255, 1);
+
+        /// <summary>
+        /// Gets red used in dalamud.
+        /// </summary>
+        public static Vector4 DalamudRed { get; } = new Vector4(1f, 0f, 0f, 1f);
+
+        /// <summary>
+        /// Gets grey used in dalamud.
+        /// </summary>
+        public static Vector4 DalamudGrey { get; } = new Vector4(0.70f, 0.70f, 0.70f, 1.00f);
+
+        /// <summary>
+        /// Gets grey used in dalamud.
+        /// </summary>
+        public static Vector4 DalamudGrey2 { get; } = new Vector4(0.7f, 0.7f, 0.7f, 1.0f);
+
+        /// <summary>
+        /// Gets grey used in dalamud.
+        /// </summary>
+        public static Vector4 DalamudGrey3 { get; } = new Vector4(0.5f, 0.5f, 0.5f, 1.0f);
+
+        /// <summary>
+        /// Gets white used in dalamud.
+        /// </summary>
+        public static Vector4 DalamudWhite { get; } = new Vector4(1f, 1f, 1f, 1f);
+
+        /// <summary>
+        /// Gets white used in dalamud.
+        /// </summary>
+        public static Vector4 DalamudWhite2 { get; } = new Vector4(0.878f, 0.878f, 0.878f, 1f);
+
+        /// <summary>
+        /// Gets orange used in dalamud.
+        /// </summary>
+        public static Vector4 DalamudOrange { get; } = new Vector4(1f, 0.709f, 0f, 1f);
+
+        /// <summary>
+        /// Gets tank blue (UIColor37).
+        /// </summary>
+        public static Vector4 TankBlue { get; } = new Vector4(0, 0.6f, 1, 1);
+
+        /// <summary>
+        /// Gets healer green (UIColor504).
+        /// </summary>
+        public static Vector4 HealerGreen { get; } = new Vector4(0, 0.8f, 0.1333333f, 1);
+
+        /// <summary>
+        /// Gets dps red (UIColor545).
+        /// </summary>
+        public static Vector4 DPSRed { get; } = new Vector4(0.7058824f, 0, 0, 1);
+    }
+}