feat: support transparent in color override

docs/docs/configuration.md

@@ -149,11 +149,11 @@ Text character to use at the end of the segment. Will take the background color
 
 ### Foreground
 
-Hex [color][colors] to use as the segment text foreground color.
+Hex [color][colors] to use as the segment text foreground color. Also supports transparency using the `transparent` keyword.
 
 ### Background
 
-Hex [color][colors] to use as the segment text background color.
+Hex [color][colors] to use as the segment text background color. Also supports transparency using the `transparent` keyword.
 
 ### Properties
 
@@ -201,6 +201,9 @@ do so like this:
 "prefix": "<#CB4B16>┏[</>",
 ```
 
+Oh my Posh offers support for hex [colors][colors] as well as the `transparent` keyword to create either a transparent foreground
+override or transparent background color using the segement's [foreground][fg] property.
+
 ## Full Sample
 
 ```json
@@ -296,3 +299,4 @@ do so like this:
 [nf]: https://www.nerdfonts.com/
 [segments]: /docs/battery
 [colors]: https://htmlcolorcodes.com/color-chart/material-design-color-chart/
+[fg]: /docs/configure#foreground

renderer.go

@@ -91,13 +91,13 @@ func (r *Renderer) writeAndRemoveText(background string, foreground string, text
 }
 
 func (r *Renderer) write(background string, foreground string, text string) {
-	rex := regexp.MustCompile(`<\s*(?P<color>#[A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})>(?P<text>.*?)<\s*/\s*>`)
+	rex := regexp.MustCompile(`<((#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})|transparent))>(.*?)</>`)
 	match := rex.FindAllStringSubmatch(text, -1)
 	for i := range match {
 		// get the text before the color override and write that first
 		textBeforeColorOverride := strings.Split(text, match[i][0])[0]
 		text = r.writeAndRemoveText(background, foreground, textBeforeColorOverride, textBeforeColorOverride, text)
-		text = r.writeAndRemoveText(background, match[i][1], match[i][2], match[i][0], text)
+		text = r.writeAndRemoveText(background, match[i][1], match[i][4], match[i][0], text)
 	}
 	// color the remaining part of text with background and foreground
 	r.writeColoredText(background, foreground, text)

themes/aliens.json

@@ -51,8 +51,7 @@
           "leading_diamond": "",
           "trailing_diamond": "",
           "properties": {
-            "prefix": "  ",
+            "prefix": "<transparent> </>"
-            "prefix": "<#193549> </>"
           }
         }
       ]

themes/fish.json

@@ -40,7 +40,7 @@
               "windows_registry_icon": "",
               "folder_separator_icon": "",
               "style": "short",
-              "prefix": "<#193549></> ",
+              "prefix": "<transparent></> ",
               "postfix": " "
           }
         },

themes/jandedobbeleer.json

@@ -122,7 +122,7 @@
             "always_enabled": true,
             "error_color": "#f1184c",
             "color_background": true,
-            "prefix": "<#193549></> "
+            "prefix": "<transparent></> "
           }
         }
       ]