The most important thing is to find a project who's goals you really support. I'd hate for open source work to become a chore, you should quit if it does, and you're more likely to create good work for something you're passionate about. Hopefully the project itself won't die out quickly, because you want to make something that lasts.
Once that is ...
Help making Wikimedia Commons images in a vector format:
Images that should use vector graphics
Convert to SVG and copy to Wikimedia Commons
Category:Images that should be in SVG format
Contribute to website templates/themes:
WordPress Themes / Drupal themes
Design new icon ...
While not open source, SketchTool is free and from the same company.
It's advertised as
An OS X command-line app for exporting Pages and Slices out of .sketch documents.
I don't know if that means that you can export to .pdf, but I'd assume that you can at least export to something that's not .sketch. Otherwise this command line tool would be almost ...
Whatfontis.com is an alternative to whatthefont.com, but you have the option to just display free fonts.
However, when uploading my example, I could not find anything suitable.
A manually found alternative, in my opinion, would be Source Sans Pro, Semibold. As the width differs, I tweaked kerning manually:
The short answer is: there unfortunately usually aren't many motivations. It's a problem (some suggestions on how to help get designers involved below).
If you look at open source projects, it's often very clear that no designers are heavily involved and that design elements are created by developers who have basic design skills: even for open-source design ...
Perhaps obviously (although perhaps not so obviously in the era of Wikipedia and having one's StackExchange Q&A edited by others without asking)...someone's GitHub repository on the web is not something you modify directly. Instead you "fork" it to create your own clone, that only you (and collaborators you designate) can modify.
So if the ...
If you do a Google search for Lasso Tool in Gimp you will receive a few links and the first link in the search is from GIMP's documentation that shows the Free Selection Tool
Per an insert from Gimp
The Free Selection tool, or Lasso, lets you create a selection by
drawing it free-hand with the pointer, while holding down the left
mouse button (or, ...
One thing that you need to be aware of is that a lot of open-source projects (and software in general) do not have a huge amount of work to offer for a graphic designer. First, there is a vast number that does not have any graphical component whatsoever. For others, the UI is mostly implemented via some UI library that pretty much determines the look and ...
Many Open Source games are looking for graphic designers.
For example, at Pushover we are looking for a volunteer to redesign the main character (in all movement states).
As a graphic designer you are one of the most wanted people by Open Source teams. They usually have enough programmers (or at least know where to find them), but finding good graphics ...
Just to get this off the unanswered list, and since my comment appears to have been useful:
Most of the actual typographical requirements listed in this question will be matched by most fonts on the market; there are just one or two deal-breakers that are largely type-dependent:
Serif fonts rarely have single-storey g’s (except sometimes as an alternate)
Have you tried using Invision? Not really an open-source solution but it is free and platform-independent.
The designer can keep syncing sketch files throughout the day and you can view them at once. You can even comment on specific parts of the mock-up!
Invision solved this problem for our workflow. The devs (like me) are on Linux while the designers are ...
I will preface this by saying that I am not a lawyer. I am pretty familiar with font legal/business issues from my decade-plus at Adobe working with their lead font lawyer, and 20 years in the type business in various roles dealing with IP.
But that said, these are legal issues, and consulting a lawyer is an excellent idea. One such lawyer who is well known ...
This answer is copied from Black and white emoji fonts – enfascination
Noto Emoji Font
Google has a fully internationalized font, Noto, whose emoji font has a black and white version:
The smiley’s are blobs.
EmojiOne is a color font with black and white fallbacks. I couldn’t figure out how ...
While there are no standards, there are submissions to and recommendations from the World Wide Web Consortium.
Fonts at World Wide Web Consortium has further, more technical information. The WOFF FAQ claims that WOFF, as it gains acceptance, allows better typography, accessibility, internationalization and Search Engine Optimization.
On a related note that ...
Try R -- it is a full array programming language for doing data science, with a powerful plotting capabilities. It easily exports to PDF and SVG (among other formats) and those files import nice and are made in way they can be reasonably edited. Also there are usually numerous options to control the plot.
And there is a package called ade4 which does ...
Blender (2d is just a subset of 3D)
a NodeBox3 Example
A simple example of using NodeBox to make text appear, I had not used NodeBox 3 before so it took me 15-20 minutes to get up to speed (tough i have used shake and nuke which are very similar). Its ...
Since Sketch is a fairly new program I do not think there would be software at this moment that will open the files.
I would suggest you ask the designer to export the sketch files in a common format such as:
If you ever want to work on the files and might have something like Inkscape or enjoy code have them export it out as SVG.
You don't typically license a logo at all--as a logo is meant to represent a single entity.
However, within the license of the software itself, you may want to add clauses about how the logo can be used (or not used) by others.
Open Source is for hobbyist or "moonlighting" designers primarily. Not exclusively, but primarily.
If a designer has a 9 to 5 job where they can depends upon a paycheck and life's necessities, then they tend to spend their spare time doing the things they want to do which may or may not always be what their employer pays them to do. If ...
The best way to find fonts right now is to ask people who know. I'm not aware of a service; any font-identification service is typically created to drive sales, so there's not really an incentive to make version that drives you to FOSS typography.
So, you're in the right place :) Font identification happens often here, and there are a lot of people who can ...
In addition to Google Fonts, there is also Font Squirrel.
If you are a developer or designing a web application, take a look at NPM typeface packages. This allow you to download and self-host fonts instead of using a CDN like Google Fonts.
There's a huge variety of work on Dribbble and Behance so the only way to answer this is with a short directory of other more focussed questions....
Most of the designs on Dribbble are UI designs, for that, see What software is best for GUI design?
TLDR: usually personal preference between Photoshop and Fireworks; InDesign can be good for info ...
Already some excellent answers here, but one thing I'd like to add is help them make a better looking website. Most projects, if they have a website, usually have one that's really bare-bones. A good looking website will help promote the project thereby attracting not only more users but also more volunteers and possibly more donations.
Speaking of GitHub, ...