Kivy - base application has strange alignment

Question

I am trying to build a basic Kivy app. After adding the basic elements, and running the app, all of the elements are crammed into the bottom left corner. It shows up like th

Answer 1

As your root widget is not a layout (you made SublimeLauncher inherit Widget), it doesn't set its children size/positions. So your FloatLayout have the defaults, since you don't override them manually either.

pos: 0, 0
size: 100, 100

And these defaults of course constraints the child, since FloatLayout by constraint their size based on their size_hint property.

You want to give them more space, as Nykakin pointed out.

Also, as your text is bigger than the Label (you didn't set halign and text_size either) its texture is centered on the center of the Label, and so some part of it is out of screen. You want to have a look at kivy/examples/widgets/textalign.py