IMGUI_APIvoidAddRect(constImVec2&a,constImVec2&b,ImU32col,floatrounding=0.0f,introunding_corners_flags =~0,floatthickness=1.0f);// a: upper-left, b: lower-right, rounding_corners_flags: 4-bits corresponding to which corner to round
IMGUI_APIvoidPathRect(constImVec2&rect_min,constImVec2&rect_max,floatrounding=0.0f,introunding_corners_flags =~0);// rounding_corners_flags: 4-bits corresponding to which corner to round
// Channels
// - Use to simulate layers. By switching channels to can render out-of-order (e.g. submit foreground primitives before background primitives)