fix: inherit Transparent when no parent

src/ansi_color.go

@@ -137,9 +137,15 @@ func (a *AnsiColor) write(background, foreground, text string) {
 		if background == Inherit && a.Parent != nil {
 			background = a.Parent.Background
 		}
+		if background == Inherit && a.Parent == nil {
+			background = Transparent
+		}
 		if foreground == Inherit && a.Parent != nil {
 			foreground = a.Parent.Foreground
 		}
+		if foreground == Inherit && a.Parent == nil {
+			foreground = Transparent
+		}
 		inverted := foreground == Transparent && len(background) != 0
 		background = a.getAnsiFromColorString(background, !inverted)
 		foreground = a.getAnsiFromColorString(foreground, false)

src/ansi_color_test.go

@@ -92,6 +92,18 @@ func TestWriteANSIColors(t *testing.T) {
 			Colors:   &Color{Foreground: "black", Background: "white"},
 			Parent:   &Color{Foreground: "yellow", Background: "red"},
 		},
+		{
+			Case:     "Inherit no parent foreground",
+			Input:    "hello <inherit>world</>",
+			Expected: "\x1b[47m\x1b[30mhello \x1b[0m\x1b[47;49m\x1b[7mworld\x1b[0m",
+			Colors:   &Color{Foreground: "black", Background: "white"},
+		},
+		{
+			Case:     "Inherit no parent background",
+			Input:    "hello <,inherit>world</>",
+			Expected: "\x1b[47m\x1b[30mhello \x1b[0m\x1b[30mworld\x1b[0m",
+			Colors:   &Color{Foreground: "black", Background: "white"},
+		},
 		{
 			Case:     "Inline override",
 			Input:    "hello, <red>world</>, rabbit",

src/segment_az_functions.go

@@ -12,7 +12,7 @@ func (az *azfunc) init(props *properties, env environmentInfo) {
 	az.language = &language{
 		env:        env,
 		props:      props,
-		extensions: []string{"host.json", "local.settings.json"},
+		extensions: []string{"host.json", "local.settings.json", "function.json"},
 		commands: []*cmd{
 			{
 				executable: "func",