diff --git a/relational_gui/maingui.ui b/relational_gui/maingui.ui
index 9b2c1f4..33efbb1 100644
--- a/relational_gui/maingui.ui
+++ b/relational_gui/maingui.ui
@@ -43,135 +43,180 @@
-
-
-
-
-
-
- Product
-
-
- *
-
-
-
- -
+
+
-
+
+
+ 0
+ 0
+
+
+
+
+ 40
+ 16777215
+
+
Difference
-
-
-
- -
-
-
- Union
-
-
- ∪
+
+ true
- -
-
-
- Intersection
-
-
- ∩
-
-
-
- -
-
-
- Division
-
-
- ÷
-
-
-
- -
-
-
- Natural join
-
-
- ⋈
-
-
-
- -
-
-
- Left outer join
-
-
- ⧑
-
-
-
- -
-
-
- Right outer join
-
-
- ⧒
-
-
-
- -
+
-
+
+
+ 0
+ 0
+
+
+
+
+ 40
+ 16777215
+
+
Full outer join
⧓
+
+ true
+
- -
-
+
-
+
+
+
+ 0
+ 0
+
+
+
+
+ 40
+ 16777215
+
+
- Projection
+ Division
- π
+ ÷
+
+
+ true
- -
+
-
+
+
+
+ 0
+ 0
+
+
+
+
+ 40
+ 16777215
+
+
+
+ Product
+
+
+ *
+
+
+ true
+
+
+
+ -
+
+
+ 0
+ 0
+
+
+
+
+ 40
+ 16777215
+
+
Selection
σ
-
-
- -
-
-
- Rename
-
-
- ρ
+
+ true
- -
+
-
+
+
+ 0
+ 0
+
+
+
+
+ 40
+ 16777215
+
+
➡
+
+ true
+
- -
+
-
+
+
+
+ 0
+ 0
+
+
+
+
+ 40
+ 16777215
+
+
+
+ Left outer join
+
+
+ ⧑
+
+
+ true
+
+
+
+ -
Qt::Vertical
@@ -184,6 +229,156 @@
+ -
+
+
+
+ 0
+ 0
+
+
+
+
+ 40
+ 16777215
+
+
+
+ Union
+
+
+ ∪
+
+
+ true
+
+
+
+ -
+
+
+
+ 0
+ 0
+
+
+
+
+ 40
+ 16777215
+
+
+
+ Intersection
+
+
+ ∩
+
+
+ true
+
+
+
+ -
+
+
+
+ 0
+ 0
+
+
+
+
+ 40
+ 16777215
+
+
+
+ Natural join
+
+
+ ⋈
+
+
+ true
+
+
+
+ -
+
+
+
+ 0
+ 0
+
+
+
+
+ 40
+ 16777215
+
+
+
+ Right outer join
+
+
+ ⧒
+
+
+ true
+
+
+
+ -
+
+
+
+ 0
+ 0
+
+
+
+
+ 40
+ 16777215
+
+
+
+ Projection
+
+
+ π
+
+
+ true
+
+
+
+ -
+
+
+
+ 0
+ 0
+
+
+
+
+ 40
+ 16777215
+
+
+
+ Rename
+
+
+ ρ
+
+
+ true
+
+
+
@@ -420,7 +615,14 @@
- -
+
-
+
+
+ Unload all
+
+
+
+ -
Unload
@@ -540,7 +742,7 @@
0
0
800
- 21
+ 20