From 702f65c29cbd27a9d7e54a0bbab2cd1eac323c84 Mon Sep 17 00:00:00 2001
From: falken10vdl <falken10vdl@gmail.com>
Date: Tue, 7 Jul 2026 11:41:53 +0200
Subject: [PATCH] Fix initila style when loading (default is SOLID - Flat:
 Shade)

(cherry picked from commit 13c4ba257de75034808b30a4a866d9f33bb5deda)
---
 src/bonsai/bonsai/tool/style.py | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/bonsai/bonsai/tool/style.py b/src/bonsai/bonsai/tool/style.py
index 233d04866f..de2b35f900 100644
--- a/src/bonsai/bonsai/tool/style.py
+++ b/src/bonsai/bonsai/tool/style.py
@@ -1090,6 +1090,11 @@ class Style(bonsai.core.tool.Style):
                 has_any_textures = True
             if shading_type == "SOLID":
                 props.active_style_type = "Shading"
+                shading = style_elements.get("IfcSurfaceStyleRendering") or style_elements.get("IfcSurfaceStyleShading")
+                if shading:
+                    d = tool.Loader.surface_style_to_dict(shading)
+                    alpha = 1.0 - (d.get("Transparency") or 0.0)
+                    material.diffuse_color = d["SurfaceColour"] + (alpha,)
             else:  # MATERIAL_PREVIEW or RENDERED
                 if cls.has_blender_external_style(style_elements) and not props.prefer_ifc_shading:
                     props.active_style_type = "External"