This allows for typing [8] instead of [8, 8, 8, 8] to specify the same
margin on all edges, for example. The constructors follow CSS' style of
specifying margins. The added constructors are:
- Margins(int all): Sets the same margin on all edges.
- Margins(int vertical, int horizontal): Sets the first argument to top
and bottom margins, and the second argument to left and right margins.
- Margins(int top, int vertical, int bottom): Sets the first argument to
the top margin, the second argument to the left and right margins,
and the third argument to the bottom margin.
This is a template which instantiates into what you'd write to start out
a basic Serenity GUI application. It contains a CMakeLists.txt file
which describes what each declaration does, a simple GUI application
which uses layouts, widgets and callbacks, and comes with a minimal set
of pledges which the user can add to as necessary.
