diff --git a/resources/profiles/BBL/process/fdm_process_bbl_common.json b/resources/profiles/BBL/process/fdm_process_bbl_common.json
index b74657b8ea..c1cab48630 100644
--- a/resources/profiles/BBL/process/fdm_process_bbl_common.json
+++ b/resources/profiles/BBL/process/fdm_process_bbl_common.json
@@ -37,7 +37,7 @@
     "gap_infill_speed": "50",
     "infill_combination": "0",
     "sparse_infill_line_width": "0.45",
-    "infill_wall_overlap": "25%",
+    "infill_wall_overlap": "15%",
     "sparse_infill_speed": "250",
     "interface_shells": "0",
     "ironing_flow": "10%",
diff --git a/resources/profiles/BBL/process/fdm_process_common.json b/resources/profiles/BBL/process/fdm_process_common.json
index 0343476333..734dc9d7e5 100644
--- a/resources/profiles/BBL/process/fdm_process_common.json
+++ b/resources/profiles/BBL/process/fdm_process_common.json
@@ -25,7 +25,7 @@
     "gap_infill_speed": "30",
     "infill_combination": "0",
     "sparse_infill_line_width": "0.45",
-    "infill_wall_overlap": "25%",
+    "infill_wall_overlap": "15%",
     "sparse_infill_speed": "50",
     "interface_shells": "0",
     "detect_overhang_wall": "0",
diff --git a/src/libslic3r/PrintConfig.cpp b/src/libslic3r/PrintConfig.cpp
index 229a96e7f0..68de99bbbb 100644
--- a/src/libslic3r/PrintConfig.cpp
+++ b/src/libslic3r/PrintConfig.cpp
@@ -1093,7 +1093,7 @@ void PrintConfigDef::init_fff_params()
     def->tooltip  = L("Default filament color");
     def->gui_type = ConfigOptionDef::GUIType::color;
     def->mode     = comAdvanced;
-    def->set_default_value(new ConfigOptionStrings{"#00AE42"});
+    def->set_default_value(new ConfigOptionStrings{""});
 
     def = this->add("filament_colour", coStrings);
     def->label = L("Color");