added fallback

converter.go

@@ -5,6 +5,7 @@ import (
 	"fmt"
 	"html"
 	"math"
+	"os"
 	"regexp"
 	"sort"
 	"strconv"
@@ -27,6 +28,7 @@ type GliffyDiagramConverter struct {
 }
 
 func NewGliffyDiagramConverter(gliffyDiagramString string) (*GliffyDiagramConverter, error) {
+	customTrans := os.Getenv("GLIFFY_TRANSLATIONS_JSON")
 	c := &GliffyDiagramConverter{
 		diagramString:   gliffyDiagramString,
 		drawioDiagram:   NewMxGraph(),
@@ -35,7 +37,7 @@ func NewGliffyDiagramConverter(gliffyDiagramString string) (*GliffyDiagramConver
 		rotationPattern: regexp.MustCompile(`rotation=(\-?\w+)`),
 		pageIDPattern:   regexp.MustCompile(`pageId=([^&]+)`),
 		namePattern:     regexp.MustCompile(`name=([^&]+)`),
-		translator:      NewStencilTranslator(""),
+		translator:      NewStencilTranslator("").WithCustomMapping(customTrans),
 	}
 	if err := c.start(); err != nil {
 		return nil, err
@@ -331,6 +333,9 @@ func (c *GliffyDiagramConverter) convertGliffyObject(obj *GliffyObject, parent *
 			isChevron := strings.Contains(obj.UID, "chevron")
 			if translatedStyle != "" {
 				style.WriteString("shape=" + translatedStyle + ";")
+			} else {
+				// Fallback if stencil translation is missing: render as a basic rect so the shape is visible.
+				style.WriteString("shape=rect;")
 			}
 			if !strings.Contains(style.String(), "shadow=") {
 				style.WriteString("shadow=" + intToString(boolToInt(shape.DropShadow)) + ";")