AVRO-3554: Use new project logo on website (#2594)

Includes these changes:
* Fix logo links in PHP readme (reference images from the ASF website)
* Update logo files. Note that the SVG logo with text is special: it uses CSS to scale to its
parents height or width, and used the current (text) color for the text.
* Add shortcode to reference logo. This allows referencing the logo asset in content.
* Update logo on website
* Remove (now) unused logo
* Fix site warnings. There is still a warning left, but that's in the docsy theme.
* Add blog post announcing the new logo

doc/assets/scss/_styles_project.scss

@@ -15,9 +15,21 @@
 // specific language governing permissions and limitations
 // under the License.
 
+@font-face {
+  font-family: 'PT Mono';
+  font-style: normal;
+  font-weight: 400;
+  font-display: swap;
+  src: url(./PTMono-Regular.ttf) format('truetype');
+}
+
 // Disable all github editing links for now
 .td-page-meta--view { display: none !important; }
 .td-page-meta--edit { display: none !important; }
 .td-page-meta--child { display: none !important; }
 .td-page-meta--issue { display: none !important; }
 .td-page-meta--project-issue { display: none !important; }
+
+.navbar-brand {
+  font-family: "PT Mono", monospace;
+}

doc/config.toml

@@ -87,8 +87,8 @@ anchor = "smart"
 
 # Language configuration
 
-[languages]
-[languages.en]
+[languages.params]
+[languages.en.params]
 title = "Apache Avro"
 description = ""
 languageName ="English"

doc/content/en/blog/news/new-project-logo.md

@@ -0,0 +1,50 @@
+---
+title: "New Project Logo"
+linkTitle: "New Project Logo"
+date: 2023-11-21
+---
+
+<!--
+
+ Licensed to the Apache Software Foundation (ASF) under one
+ or more contributor license agreements.  See the NOTICE file
+ distributed with this work for additional information
+ regarding copyright ownership.  The ASF licenses this file
+ to you under the Apache License, Version 2.0 (the
+ "License"); you may not use this file except in compliance
+ with the License.  You may obtain a copy of the License at
+
+   https://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing,
+ software distributed under the License is distributed on an
+ "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ KIND, either express or implied.  See the License for the
+ specific language governing permissions and limitations
+ under the License.
+
+-->
+
+The Apache Avro project has a new project logo!
+
+The old logo was derived from the logo of a (now defunct) aircraft manufacturer
+in Great Britain. This posed a risk, as the Apache foundation would not contest
+legal action (even if extremely unlikely).
+
+But thanks to Emma Kellam, we now have a new logo! She has made several logo
+designs, and after some debate and several votes (it was a close call!), we can
+announce the new logo:
+
+[//]: # (the logo scales to 100% high or all available width, so limit it)
+<p style="height: 10rem">
+{{< project_logo >}}
+</p>
+
+The new logo is an homage to the previous logo, which is also triangular and
+uses blue colours. The paper airplane embodies keywords like 'fast', 'small'
+and 'efficient'. The blobby tail left behind by the airplane makes the icon
+unique and embodies 'flow' and 'transformation'.
+
+All in all a very nice logo for Apache Avro, which embodies the same keywords.
+
+Thanks for all your hard work Emma, and welcome!

doc/layouts/partials/navbar.html

@@ -23,9 +23,9 @@
 <nav class="js-navbar-scroll navbar navbar-expand navbar-dark {{ if $cover}} td-navbar-cover {{ end }}flex-column flex-md-row td-navbar">
         <a class="navbar-brand" href="{{ .Site.Home.RelPermalink }}">
 {{/* AVRO-3555: Don't inline the existing logo for now.
-		<span class="navbar-logo">{{ if .Site.Params.ui.navbar_logo }}{{ with resources.Get "icons/logo.svg" }}{{ ( . | minify).Content | safeHTML }}{{ end }}{{ end }}</span><span class="text-uppercase font-weight-bold">{{ .Site.Title }}</span>
+		<span class="navbar-logo">{{ if .Site.Params.ui.navbar_logo }}{{ with resources.Get "icons/logo.svg" }}{{ ( . | minify).Content | safeHTML }}{{ end }}{{ end }}</span><span class="font-weight-bold">{{ .Site.Title }}</span>
 */}}
-		<span class="navbar-logo"><img src="/docs/++version++/logo.svg" width="100" height="30" style="margin: 0 10px"></span><span class="text-uppercase font-weight-bold">{{ .Site.Title }}</span>
+		<span class="navbar-logo"><img src="{{ with resources.Get "icons/logo.svg" }}{{ .RelPermalink }}{{ end }}" width="35" height="30" style="margin: 0 10px"></span><span class="font-weight-bold">{{ .Site.Title }}</span>
 	</a>
 
 	<div class="td-navbar-nav-scroll ml-md-auto" id="main_navbar">

doc/layouts/shortcodes/project_logo.html

@@ -0,0 +1,22 @@
+{{/*
+
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements.  See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership.  The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License.  You may obtain a copy of the License at
+
+https://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied.  See the License for the
+specific language governing permissions and limitations
+under the License.
+
+*/}}{{/*
+This file should not have a trailing newline.
+*/}}{{ with resources.Get "/icons/logo-text.svg" }}{{ (.|minify).Content | safeHTML }}{{ end }}

lang/php/README.md

@@ -1,4 +1,4 @@
-|[![AVRO](https://raw.githubusercontent.com/apache/avro/main/doc/src/resources/images/avro-logo.png)](https://github.com/apache/avro) | [![AVRO](https://raw.githubusercontent.com/apache/avro/main/doc/src/resources/images/apache_feather.gif)](https://github.com/apac<he/avro)|
+| [<img src="https://www.apache.org/logos/res/avro/default.png" width="360" alt="Avro"/>](https://github.com/apache/avro) | [<img src="https://projects.apache.org/images/asf_logo.png" width="360" alt="Avro"/>](https://github.com/apache/avro) |
 |:-----|-----:|
 
 What the Avro PHP library is