| Nuklear
    This is a minimal-state, immediate-mode graphical user interface toolkit written in ANSI C and licensed under public domain. It was designed as a simple embeddable user interface for application and does not have any dependencies, a default render backend or OS window/input handling but instead provides a highly modular, library-based approach, with simple input state for input and draw commands describing primitive shapes as output. So instead of providing a layered library that tries to abstract over a number of platform and render backends, it focuses only on the actual UI. | 

| Data Fields | |
| enum nk_panel_type | type | 
| nk_flags | flags | 
| struct nk_rect | bounds | 
| nk_uint * | offset_x | 
| nk_uint * | offset_y | 
| float | at_x | 
| float | at_y | 
| float | max_x | 
| float | footer_height | 
| float | header_height | 
| float | border | 
| unsigned int | has_scrolling | 
| struct nk_rect | clip | 
| struct nk_menu_state | menu | 
| struct nk_row_layout | row | 
| struct nk_chart | chart | 
| struct nk_command_buffer * | buffer | 
| struct nk_panel * | parent |