raygui （源码剖析）

Raygui

https://github.com/raysan5/raygui

uGUI (源码解析)

https://github.com/Unity-Technologies/uGUI

Notes

HUD & Panels

struct UIStyle {
    Font font;
    int fontSize;
    Color textColor;
    Color bgColor;
    Color borderColor;
    float padding;
    float spacing;
};

struct RectTransform {
    Rectangle rect;
};

Label
Button
Panel
ProgressBar
TextBox
List
Tooltip