Color is a Ruby library to provide RGB, CMYK, HSL, and other color space manipulation support to applications that require it. It provides optional named RGB colors that are commonly supported in HTML, SVG, and X11 applications. The Color library performs purely mathematical manipulation of the colors based on color theory without reference to device color profiles (such as sRGB or Adobe RGB). For most purposes, when working with RGB and HSL color spaces, this won't matter. Absolute color spaces (like CIE LAB and CIE XYZ) cannot be reliably converted to relative color spaces (like RGB) without color profiles. When necessary for conversions, Color provides D65 and D50 reference white values in Color::XYZ. Color 2.1 fixes multiple Color::XYZ bugs. It builds on the Color 2.0 major release, dropping support for all versions of Ruby prior to 3.2 as well as removing or renaming a number of features. The main breaking changes are: - Color classes are immutable Data objects; they are no longer mutable. - RGB named colors are no longer loaded on gem startup, but must be required explicitly (this is _not_ done via `autoload` because there are more than 100 named colors with spelling variations) with `require "color/rgb/colors"`. - Color palettes have been removed. - `Color::CSS` and `Color::CSS#[]` have been removed.

Phone number validation

Use the GraphiQL IDE for GraphQL with Ruby on Rails. This gem includes an engine, a controller and a view for integrating GraphiQL with your app.

Simple Ruby rate limiting mechanism.

Adds Minitest as the default testing library in Rails

Simple Rails & AWS Lambda Integration using Rack and various utilities.

Extract as much much detail as you want from GraphQL queries, served up from your Ruby app and the `graphql` gem. Compatible with the `graphql-batch` gem, to extract batch-loaded fields resolution timings.

A collection of extensions and developer tools for ViewComponent

Check and verify in-app receipts

A stats collection and distributed tracing framework

Helps to save your eyes, when reading hardcore SQL requests in console

A pure Ruby implementation of a useful subset of Prolog.

This gem is only needed before Rails 7.1, where the trilogy adapter is built in. When you upgrade to a version after 7.1.a, replace this with `gem "trilogy"` to ensure that trilogy itself is available.

Rails ActiveRecord connector for Google Spanner Database

The appengine gem is a set of classes, plugins, and tools for integration with Google App Engine. It provides access to the App Engine runtime environment, including logging to the Google Cloud Console and interrogation of hosting properties. It also provides Rake tasks for managing your App Engine application, for example to run production maintenance commands such as database migrations. This gem is NOT required to deploy your Ruby application to App Engine.

Configurations provides a unified approach to do configurations with the flexibility to do everything from arbitrary configurations to type asserted configurations for your gem or any other ruby code.

GirFFI creates bindings for GObject-based libraries at runtime based on introspection data provided by the GObject Introspection Repository (GIR) system. Bindings are created at runtime and use FFI to interface with the C libraries. In cases where the GIR does not provide enough or correct information to create sane bindings, overrides may be created.

Scalable Rails Background Processing with AWS Lambda & SQS.

<tt>minitar-cli</tt> is a pure-Ruby command-line tool that uses {minitar}[https://github.com/halostatue/minitar] to provide a command-line tool, +minitar+, for working with POSIX tar(1) archive files.

Stackdriver exporter for OpenCensus