changes code to use attributes instead of vertex_colors

this also bump the blender requirement to 2.92

src/__init__.py

@@ -3,7 +3,7 @@ bl_info = {
     "author": "iedSoftworks",
     "description": "",
     # !VERSION
-    "blender": (2, 80, 0),
+    "blender": (2, 92, 0),
     "category": "Object"
 }
 

src/properties/bake_to_id.py

@@ -16,7 +16,7 @@ class BakeToIDProperties(PropertyGroup):
         items=get_targets_enum(),
         name="Target",
         description="To where should the IDs should be baked to",
-        default="VERTEX_COLORS"
+        default=get_targets_enum()[0][0]
     )
 
     source_materials_remove_all : BoolProperty(

src/types/targets/vertex_colors.py

@@ -1,6 +1,6 @@
-target_id = 'VERTEX_COLORS'
-name = 'Vertex Colors'
-description = 'Bakes the ID onto the vertex color'
+target_id = 'COLOR_ATTRIBUTE'
+name = 'Color Attribute / Vertex Color'
+description = 'Bakes the ID onto a color attribute (previously known as Vertex Color)'
 
 connected_properties = [
     'target_vertex_color_attribute_name'
@@ -8,25 +8,25 @@ connected_properties = [
 
 
 def paint_targets(props, targets, colors):
-    sortedTargets = {}
+    sorted_targets = {}
     for i in range(len(targets)):
         target = targets[i]
         obj = target[0]
         indecies = target[1]
 
-        if obj not in sortedTargets:
-            sortedTargets[obj] = []
+        if obj not in sorted_targets:
+            sorted_targets[obj] = []
 
-        sortedTargets[obj].append((indecies, colors[i]))
+        sorted_targets[obj].append((indecies, colors[i]))
 
     layer_name = props.target_vertex_color_attribute_name
-    for mesh in sortedTargets:
-        if layer_name in mesh.vertex_colors:
-            mesh.vertex_colors.remove(mesh.vertex_colors[layer_name])
+    for mesh in sorted_targets:
+        if layer_name in mesh.attributes:
+            mesh.attributes.remove(mesh.attributes[layer_name])
 
-        vertex_color_layer = mesh.vertex_colors.new(name=layer_name)
+        color_attribute = mesh.attributes.new(name=layer_name, type='FLOAT_COLOR', domain='CORNER')
 
-        for (indecies, color) in sortedTargets[mesh]:
+        for (indecies, color) in sorted_targets[mesh]:
             for polygon in indecies:
                 for idx in polygon.loop_indices:
-                    vertex_color_layer.data[idx].color = (color[0], color[1], color[2], 1.0)
+                    color_attribute.data[idx].color = (color[0], color[1], color[2], 1.0)