Horizontal Renderer #593

Category
Examples

Component
Renderer

Is your feature request related to a problem? Please describe.
Scratch have horizontal renderer. Blockly should too, or at least an example! I'm trying to make one but it's pretty hard with the current documentation.

Describe the solution you'd like
An example of an horizontal renderer here or at main repo would be great. (As soon as possible haha)

Describe alternatives you've considered
I've tried porting an horizontal renderer from Scrach but it's not plug n play at all (haha).

Additional context
I'm trying to develop a game for young children to start programming, and It's my first project with Blockly. It should be horizontal and I didn't want to use Scrach (I want to transpile to javascript). I'm using with React.