* This allows [custom behaviors](http://wiki.compilgames.net/doku.php/gdevelop5/behaviors/events-based-behaviors), that you can create in your project or get from extensions, to require the presence of one or multiple other behaviors on an object.
* This is an advanced feature that is helpful to create behaviors that are based on other. For example, a behavior "Platformer enemy" using the "Platformer object" behavior and adding specific actions, conditions and logic to make an enemy chase the player.
* If you create a behavior and want to use this, just go to the properties of this behavior and add a new property. Choose the type "Required Behavior" for this property. You can then use this new behavior in the events of the behavior you just edited.
* To use a behavior based on another, you don't need to do anything special! Just add it to your object as usual: any missing behavior will be added to your object, so you can start using it immediately.
* This allows to generate interesting visual effects, which can be controlled by events. For example, you can use an outline on an object to highlight, make the player glow when launching a spell, blur objects, etc...
* A new "effects" tab is now present in the objects editor. From there, you can add visual effects, that were already available for layers, customize them from this editor.
* Actions and conditions are available to manipulate effects and change their parameters during the game.
* Learn more on the wiki: http://wiki.compilgames.net/doku.php/gdevelop5/objects/effects
Co-authored-by: Florian Rival <Florian.Rival@gmail.com>
* Allow to choose the style of the GDevelop logo (light, dark, colored or plain)
* Allow to choose the background color and an optional background image
* Allow to choose the size of the progress bar (with a minimum and maximum size)
* Allow to choose the duration of the fade in animations and the minimum time the loading screen is shown
* Use the **new preview button in the game properties** dialog to run a preview with the loading screen shown
* This removes toJSON method on gdjs.Variable. This was just introduced in beta 111, if you're using it, please use toJSObject instead and JSON.stringify.
This reduces the number of copied files (let esbuild build directly in the proper output folder).
Also avoid copying the source files after every change (avoiding ~3-4 seconds of copy).
Overall, a change in GDJS/Extensions results in 1-3 seconds of build, instead of almost 10 sometimes due to the large number of file copies.
Only show in developer changelog
* This allows to display texts on screen that use a "bitmap font", generated with softwares like [BMFont](https://www.angelcode.com/products/bmfont/) or [bmGlyph](http://www.bmglyph.com/).
* Bitmap fonts allow advanced effects and custom design of each character, with complete control over the appearance of the text. This is useful for making a custom score counter, titles, button labels...
* They also render very well in a pixel-perfect, pixel-art or retro-like game.
* Finally, these Bitmap Texts are fast and efficient to render on screen: useful for scores or texts that are updated frequently.
* This is useful for making concise actions or conditions.
* This is also useful because for some objects, the center is not located at half the width and the height of the object.
* You can use `Object.CenterX()` and `Object.CenterY()` to get the position of the center of an object in an expression.
* This fixes some "flickering" when a sprite is just created, when a scene is changed or when external layout objects are created on a scene.
Fixes#1285
* Because of this, this could create some glitches when playing sounds using the condition to check if a sound was already playing (for example, it could trigger multiple times a sound).
ClementPasteau