Add option to use twemojis instead of emojis (#121)

source/plugins/core/README.md

@@ -39,6 +39,21 @@ Omitted one will be appended using default order.
     config_order: base.header, isocalendar, languages, stars
 ```
 
+### 🙂 Using twemojis instead of emojis
+
+You can choose to use [twemojis](https://github.com/twitter/twemoji) instead of regular emojis so rendered metrics are more consistent across all platforms.
+
+It may increase filesize since it replace unicode characters by SVG images.
+
+#### ℹ️ Examples workflows
+
+```yaml
+- uses: lowlighter/metrics@latest
+  with:
+    # ... other options
+    config_twemoji: yes
+```
+
 ### 🎞️ SVG CSS Animations
 
 As rendered metrics use HTML and CSS, some templates have animations.

source/plugins/core/metadata.yml

@@ -88,6 +88,13 @@ inputs:
     format: comma-separated
     default: ""
 
+  # Use twemojis instead of emojis
+  # May increase filesize but emojis will be rendered the same across all platforms
+  config_twemoji:
+    description: Use twemojis instead of emojis
+    type: boolean
+    default: no
+
   # Enable SVG CSS animations
   config_animations:
     description: SVG CSS animations

source/plugins/core/tests.yml

@@ -10,6 +10,12 @@
     token: MOCKED_TOKEN
     config_output: png
 
+- name: Use twemoji
+  uses: lowlighter/metrics@latest
+  with:
+    token: MOCKED_TOKEN
+    config_twemoji: yes
+
 - name: Disable animations
   uses: lowlighter/metrics@latest
   with: