tweak(regex): Improve `Colourisation` description

regex_patterns/Colourisation.yml

@@ -1,8 +1,17 @@
 name: Colourisation
 pattern: \bcolou?r(i[sz]ed?|ed)?\b
-description: '- Matches `colour`, `coloured`, `colourize`, `colourized`.
+description: 'Colourisation (or colorization in American English) is the process of
+  adding colour to black-and-white, sepia, or other monochrome images. Matches variations
+  of `color` in both American and British spellings, including:
 
-  - Handles both American ("color") and British ("colour") spellings.'
+
+  - **Base forms:** `color`, `colour`
+
+  - **Past tense/adjective forms:** `colored`, `coloured`
+
+  - **Verb forms:** `colorize`, `colourize`, `colorise`, `colourise`
+
+  - **Past participles:** `colorized`, `coloured`, `colourized`, `colourised`'
 tags:
 - Colour Grade
 - Enhancement
@@ -10,7 +19,7 @@ tests:
 - expected: true
   id: 1
   input: colour
-  lastRun: '2025-02-13T13:29:13.301346'
+  lastRun: '2025-02-22T19:10:06.067266'
   matchSpan:
     end: 6
     start: 0
@@ -21,7 +30,7 @@ tests:
 - expected: true
   id: 3
   input: coloured
-  lastRun: '2025-02-13T13:29:13.301346'
+  lastRun: '2025-02-22T19:10:06.067266'
   matchSpan:
     end: 8
     start: 0
@@ -31,30 +40,30 @@ tests:
   passes: true
 - expected: true
   id: 4
-  input: colourize
-  lastRun: '2025-02-13T13:29:13.301346'
+  input: colourise
+  lastRun: '2025-02-22T19:10:06.067266'
   matchSpan:
     end: 9
     start: 0
-  matchedContent: colourize
+  matchedContent: colourise
   matchedGroups:
-  - ize
+  - ise
   passes: true
 - expected: true
   id: 7
-  input: colourized
-  lastRun: '2025-02-13T13:29:13.301346'
+  input: colourised
+  lastRun: '2025-02-22T19:10:06.067266'
   matchSpan:
     end: 10
     start: 0
-  matchedContent: colourized
+  matchedContent: colourised
   matchedGroups:
-  - ized
+  - ised
   passes: true
 - expected: true
   id: 8
   input: colored
-  lastRun: '2025-02-13T13:29:13.301346'
+  lastRun: '2025-02-22T19:10:06.067266'
   matchSpan:
     end: 7
     start: 0
@@ -65,7 +74,7 @@ tests:
 - expected: false
   id: 9
   input: discolor
-  lastRun: '2025-02-13T13:29:13.301346'
+  lastRun: '2025-02-22T19:10:06.067266'
   matchSpan: null
   matchedContent: null
   matchedGroups: []