Avoid assert on startup

source/blender/editors/physics/particle_edit.c

@@ -4669,9 +4669,14 @@ void PE_create_particle_edit(
 			psys = NULL;
 		}
 
+		/* Causes assert on startup. */
+#if 0
 		UI_GetThemeColor3ubv(TH_EDGE_SELECT, edit->sel_col);
 		UI_GetThemeColor3ubv(TH_WIRE, edit->nosel_col);
-
+#else
+		memset(edit->sel_col,   0xff, sizeof(edit->sel_col));
+		memset(edit->nosel_col, 0x00, sizeof(edit->nosel_col));
+#endif
 		recalc_lengths(edit);
 		if (psys && !cache)
 			recalc_emitter_field(depsgraph, ob, psys);