diff --git a/particle.h b/particle.h
index 8bbaa48..6bf1621 100644
--- a/particle.h
+++ b/particle.h
@@ -15,9 +15,20 @@ struct exposable;
 
 struct particle_info {
     struct particle *(*from_conf)(const struct yml_node *node,
-                                  const struct font *parent_font);
+                                  const struct font *parent_font,
+                                  int left_margin, int right_margin,
+                                  const char *on_click_template);
+
     size_t attr_count;  /* TODO: reomve, NULL-terminate attr list instead */
     const struct attr_info attrs[];
+
+#define PARTICLE_COMMON_ATTRS_COUNT 4
+#define PARTICLE_COMMON_ATTRS                      \
+    {"margin", false, &conf_verify_int},           \
+    {"left-margin", false, &conf_verify_int},      \
+    {"right-margin", false, &conf_verify_int},     \
+    {"on-click", false, &conf_verify_string}
+
 };
 
 struct particle {