Bundle a ttf for Arcade's default font

[einarf]

Right now Arcade's pyglet based text are using the following default: ("calibri", "arial"). This will just scan the system fonts and find something that matches. This will give the user fairly different looks depending on the system and OS.

Instead we should look into bundling a ttf file with a default font for Arcade. This should be something fairly close to the current default font (s):

In a game setting this makes a lot more sense. System fonts are more for generic applications.

We can and probably should add an ATTRIBUTIONS.md file in the root of the repo anyway. That might be needed here. It should also be added to the package in MANIFEST.in

[pushfoo]

This can probably be handled quickly using #1011 or a similar approach, and is arguably a duplicate of that ticket. There are metric compatible fonts for Arial, so we can get cross-platform Arial equivalents fairly easily. It may also be a good idea to include license files for the fonts as well as README files in their respective folders.

[einarf]

Budle a default font and define it in arcade.fonts.DEFAULT + add all the kenney font names we are loading on startup.

For game development in general it's all about custom fonts.

[pushfoo]

Update / recap of today's discord discussion:

This issue requires the following to resolve:

1. Decide which languages / character sets are a priority to support
2. Choose a font that includes the needed characters and has a favorable license (probably SIL Open Font, Public domain, or Apache)
3. Triple check the licensing situation, possibly with a legal professional

I started addressing item 1 in the doc analytics channel today.

Item 2 has been in progress on-and-off since I filed #1011. Although the Liberation font family seemed like the best bet, there could be issues with it:

• Earlier versions use a GPL variant that might be infectious if bundled with software
• Liberation 2.0.0+ fonts appear use the SIL Open Font license, which should be ok
• It's unclear what languages Liberation fonts support

[eruvanos]

We have Kenny fonts bundled and I set them as default for buttons, (and they are shown if loaded)

Should we have another font, that is always be loaded?

We could pick a few fonts from the following pages (with a proper license) and then let the community vote:

• https://www.dafont.com/
• https://fonts.google.com/
• https://www.dafont.com/de/bitmap.php?l[]=10

[pushfoo]

As I've said before: https://github.com/liberationfonts/liberation-fonts

They're:

1. SIL Open Font Licensed
2. Metric comptatible with the fonts they replace

Metric-compatible replacement	Original
Liberation Sans	Arial
Liberation Serif	Times New Roman
Liberation Mono	Courier New