Tag label names and definitions

Adopted from the rust wiki

TODO: many of the A- tags are still missing

We currently have 110 tags, listed at https://github.com/servo/servo/labels

TAGS LABELS	Meaning
AREA TAGS	What part of the code is relevant?
A-browserhtml/P1	(Priority) necessary to run a browser.html demo
A-browserhtml/P2	(Priority) useful to run a browser.html demo
A-browserhtml/P3	(Priority) necessary for browser.html developer preview release
A-browserhtml	The issue is encountered when running browser.html
A-build	Related to or part of the build process
A-constellation	Involves the constellation
A-content/bindings	The DOM bindings
A-content/canvas	2d canvas API
A-content/css	Interacting with CSS from web content (parsing, serializing, introspection)
A-content/dom	Interacting with the DOM from web content
A-content/editing	User input related to text editing
A-content/images	Interacting with images from web content
A-content/parsers	Related to parsing HTML and XML
A-content/script	Related to the script thread
A-content/uncategorized	Unclear categorization, related to script-based web content
A-content/webgl	3d canvas API
...
CATEGORIZATION TAGS
B-feature-tracking	This issue tracks a particular high-level feature
B-high-value	Represents work that would have a big impact
B-interesting-project	Represents work that is expected to be interesting in some fashion
B-meta	This issue tracks the status of multiple, related pieces of work
B-RFC	A request for comments on a proposal
CONDITION TAGS	The status of a particular issue
C-assigned	There is someone working on resolving the issue
C-clarifying	More information is necessary
C-disabled	The issue describes an intermittent failure in a test, which has been temporarily disabled
C-duplicate	There is another issue open that better describes the identical problem
C-has-test	The issue contains a minimal testcase
C-has-open-PR	There is a PR open that resolves the issue
C-is-this-done	It is unclear if the issue has been resolved
C-looking for assistance	The person attempting to resolve the issue requires further help
C-needs-test	A new test is required as part of resolving the issue
C-upstream	The issue needs to be resolved in a library that Servo depends upon
C-wontfix	The problem described will not be fixed
EFFORT TAGS	The expected complexity of fixing the issue
E-easy	Straightforward. Recommended for a new contributor.
E-hard	Very difficult. Do not attempt without significant relevant experience and motivation.
E-less easy	Variable effort required; may require a mentor. Recommended solution is clearly described in the issue.
IMPACT TAGS	The effect of the issue remaining unresolved.
I-bustage	Servo is unusable.
I-cleanup	No impact; the issue is one of maintainability or tidiness.
I-crash	Servo encounters a segmentation fault.
I-enhancement	No impact; the issue is a missing or proposed feature.
I-intermittent	Problem reproduces intermittently.
I-memory-leak	A memory leak has been observed.
I-panic	Servo encounters a panic.
I-papercut	Small but painful.
I-perf-bloat	Unnecessary memory usage.
I-perf-power	Unnecessary power usage.
I-perf-slow	Unnecessary performance degredation.
I-race	A race between two concurrent pieces of code.
I-refactor	No impact; the issue is one of maintainability or tidiness. Proposed solution requires refactoring.
I-safety	Some piece of code violates memory safety guarantees.
I-spec-unclear	A specification related to the issue in question is unclear.
I-wrong	An incorrect behaviour is observed.
LANGUAGE TAGS	The programming language necessary to fix the issue
L-css	CSS is required
L-javascript	Javascript is required
L-python	Python is required
PLATFORM TAGS	The platform/operating system/hardware to which the issue applies
P-android	Android devices
P-embedded	Any embedded hardware capable of running Servo
P-freebsd	The FreeBSD operating system
P-iOS	Any Apple device running iOS
P-linux	Any Linux OS capable of running Servo
P-mac	Any version of OS X
P-nvidia	Any NVIDIA graphics card
P-windows	Any version of Windows capable of running Servo
PR STATUS TAGS	The current status of any given pull request. Indicates what the expected next steps are.
S-awaiting-answer	Someone asked a question that requires an answer.
S-awaiting-merge	The PR is in the process of compiling and running tests on the automated CI.
S-awaiting-review	There is new code that needs to be reviewed.
S-blocked-on-external	Something, somewhere else, needs to happen before this PR can be merged.
S-fails-tidy	./mach test-tidy reported errors.
S-fails-travis	The automated build and tests on TravisCI did not succeed.
S-needs-code-changes	Changes have not yet been made that were requested by a reviewer.
S-needs-wiki-changes	The wiki needs to be updated (after merging).
S-needs-decision	A decision is required and has not been made.
S-needs-new-owner	The PR has been abandoned by the original author.
S-needs-rebase	There are merge conflict errors.
S-needs-squash	Some (or all) of the commits in the PR should be combined.
S-needs-tests	New tests have been requested by a reviewer.
S-tests-failed	The changes caused existing tests to fail.
[1]: http://en.wikipedia.org/wiki/Finalizer