⚠ Warnings with unsupported styles

converter/style.py

@@ -89,6 +89,9 @@ def convert_border(fig_node: dict, fig_border: dict) -> Border:
 
 
 def convert_fill(fig_node: dict, fig_fill: dict) -> Fill:
+    if fig_fill.get("blendMode", "NORMAL") != "NORMAL":
+        utils.log_conversion_warning("STY003", fig_node)
+
     match fig_fill:
         case {"type": "EMOJI"}:
             raise Exception("Unsupported fill: EMOJI")
@@ -98,6 +101,11 @@ def convert_fill(fig_node: dict, fig_fill: dict) -> Fill:
                 isEnabled=fig_fill["visible"],
             )
         case {"type": "IMAGE"}:
+            if "transform" in fig_fill and fig_fill["transform"] != Matrix(
+                [[1, 0, 0], [0, 1, 0], [0, 0, 1]]
+            ):
+                utils.log_conversion_warning("STY004", fig_node)
+
             return Fill.Image(
                 f'images/{fig_fill["image"]["filename"]}',
                 patternFillType=PATTERN_FILL_TYPE[fig_fill["imageScaleMode"]],

converter/utils.py

@@ -42,6 +42,8 @@ def get_style_table_override(fig_item):
     "SHP001": "contains a line with at least one 'Reversed triangle' end. This type of marker does not exist in Sketch. It has been converted to a 'Line' type marker",
     "STY001": "contains a layer blur and a background blur. Only one will be converted",
     "STY002": "contains a DIAMOND gradient, which is not supported. It is converted to a RADIAL gradient",
+    "STY003": "contains a fill with a non-standard blend mode, which is not supported at the fill level (us the layer blend mode instead). It will be ignored",
+    "STY004": "has a cropped image background, which is not supported yet. It will be set to stretch",
     "SYM001": "references an invalid symbol. It will be converted to an empty placeholder group",
     "SYM002": "overrides unsupported properties: {props}. The override will be ignored",
     "SYM003": "overrides unsupported properties: {props}. The instance will be detached",