Section

struct MyConfig
{
    @Section("foo") @Desc("My number of foo.")
    int number;
}

Will serialize to:

[foo]
; My number of foo.
; Default value: 0
;number=0

struct MyConfig
{
    @Desc("My \"global\" option.")
    int gNumber = -1;

    @Section("bar")
    {
        @Desc("If true the toggle is activated.")
        bool toggleMe;
        @Desc("Another number.")
        int increment = 1;
    }
}

Will serialize to:

; My "global" option.
; Default value: -1
;gNumber=-1

[bar]
; If true the toggle is activated.
; Default value: false
;toggleMe=false

; Another number.
; Default value: 1
;increment=1