| bytes | Package bytes implements functions for the manipulation of byte slices. |
| encoding/xml | Package xml implements a simple XML 1.0 parser that understands XML name spaces. |
| errors | Package errors implements functions to manipulate errors. |
| fmt | Package fmt implements formatted I/O with functions analogous to C's printf and scanf. |
| github.com/srwiley/rasterx | Package rasterx implements a rasterizer in go. |
| golang.org/x/image/colornames | Package colornames provides named colors as defined in the SVG 1.1 spec. |
| golang.org/x/image/math/fixed | Package fixed implements fixed-point integer types. |
| golang.org/x/net/html/charset | Package charset provides common text encodings for HTML documents. |
| image/color | Package color implements a basic color library. |
| io | Package io provides basic interfaces to I/O primitives. |
| log | Package log implements a simple logging package. |
| math | Package math provides basic constants and mathematical functions. |
| os | Package os provides a platform-independent interface to operating system functionality. |
| strconv | Package strconv implements conversions to and from string representations of basic data types. |
| strings | Package strings implements simple functions to manipulate UTF-8 encoded strings. |
| unicode | Package unicode provides data and functions to test some properties of Unicode code points. |