Here is a list of all files with brief descriptions:

[detail level 123456]

▼ Audio
AudioClip.cs
▼ ECS
▼ Attributes
RequireComponent.cs
TestAttribute.cs
▼ Components
▼ Colliders
BoxCollider.cs
Collider.cs
PointCollider.cs
▼ Rendering
BasicShapeRenderer.cs
LineRenderer.cs
PolygonRenderer.cs
Renderer.cs
TextureRenderer.cs
TrailRenderer.cs
▼ UI
▼ UI Elements
▼ Grids
HorizontalGrid.cs
VerticalGrid.cs
Button.cs
Checkbox.cs
ColorPicker.cs
DropdownMenu.cs
Label.cs
Slider.cs
SliderBar.cs
TextInput.cs
TextRenderer.cs
UIComponent.cs
UIWindow.cs
Canvas.cs
Camera.cs
Transform.cs
Component.cs
Entity.cs
▼ Editor
Debug.cs
Editor.cs
▼ obj
▼ Debug
▼ net7.0
.NETCoreApp,Version=v7.0.AssemblyAttributes.cs
library.AssemblyInfo.cs
library.GlobalUsings.g.cs
Engine.cs
Game.cs
MathUtil.cs