diff --git a/examples/bundles.yml b/examples/bundles.yml
new file mode 100644
index 0000000..052781d
--- /dev/null
+++ b/examples/bundles.yml
@@ -0,0 +1,64 @@
+templates: # defining templates to be used later on
+  - &molex_f
+    type: Molex KK 254
+    gender: female
+  - &con_i2c
+    pinout: [GND, +5V, SCL, SDA]
+  - &wire_i2c
+    mm2: 0.14
+    length: 0.2
+    colors: [BK, RD, YE, GN]
+
+nodes:
+  X1:
+    <<: *molex_f # copying items from the template
+    pinout: [GND, +5V, SCL, SDA, MISO, MOSI, SCK, N/C]
+  X2:
+    <<: *molex_f
+    <<: *con_i2c # it is possible to copy from more than one template
+  X3:
+    <<: *molex_f
+    <<: *con_i2c
+  X4:
+    <<: *molex_f
+    pinout: [GND, +12V, MISO, MOSI, SCK]
+  X5:
+    type: Molex Micro-Fit
+    gender: male
+    pinout: [GND, +12V]
+
+wires:
+  W1:
+    <<: *wire_i2c
+    type: bundle
+  W2:
+    <<: *wire_i2c
+    type: bundle
+  W3:
+    mm2: 0.14
+    length: 0.2
+    type: bundle
+    colors: [BK, BU, OG, VT]
+  W4:
+    mm2: 0.5
+    length: 0.35
+    colors: [BK, RD]
+    type: bundle
+
+connections:
+  -
+    - X1: [1-4]
+    - W1: [1-4]
+    - X2: [1-4]
+  -
+    - X1: [1-4]
+    - W2: [1-4]
+    - X3: [1-4]
+  -
+    - X1: [1,5-7]
+    - W3: [1-4]
+    - X4: [1,3-5]
+  -
+    - X5: [1,2]
+    - W4: [1,2]
+    - X4: [1,2]
diff --git a/examples/example2.yml b/examples/example2.yml
index 54adfaf..494c2b9 100644
--- a/examples/example2.yml
+++ b/examples/example2.yml
@@ -21,7 +21,7 @@ nodes:
     <<: *con_i2c
   X4:
     <<: *molex_f
-    pinout: [GND, +12V, MISO, MOSI, flachstecker]
+    pinout: [GND, +12V, MISO, MOSI, SCK]
   X5:
     type: Molex Micro-Fit
     gender: male
@@ -30,16 +30,20 @@ nodes:
 wires:
   W1:
     <<: *wire_i2c
+    show_name: false
   W2:
     <<: *wire_i2c
+    show_name: false
   W3:
     mm2: 0.14
     length: 0.2
     colors: [BK, BU, OG, VT]
+    show_name: false
   W4:
     mm2: 0.5
     length: 0.35
     colors: [BK, RD]
+    show_name: false
 
 connections:
   -
@@ -58,28 +62,3 @@ connections:
     - X5: [1,2]
     - W4: [1,2]
     - X4: [1,2]
-
-#   -
-#     - X1: 1
-#     - W1: 1
-#     - X2: 1
-#   -
-#     - X1: [2,3,4]
-#     - W1: [2,3,4]
-#     - X2: [4,3,2]
-#   -
-#     - X1: [5-10]
-#     - W1: [5-7,10,9,8]
-#     - X2: [10-5]
-#   -
-#     - X1: 11
-#     - W1: s
-#   -
-#     - X1: [1-5]
-#     - W1: [11-15]
-#   -
-#     - W1: [12-15]
-#     - X2: [2-5]
-#   -
-#     - X1: [12,14]
-#     - X1: [13,15]
diff --git a/examples/ferrules.yml b/examples/ferrules.yml
index 9fb8319..8a88f62 100644
--- a/examples/ferrules.yml
+++ b/examples/ferrules.yml
@@ -11,10 +11,11 @@ nodes:
 wires:
   W1:
     mm2: 0.25
+    show_equiv: true
     length: 0.2
     color_code: IEC
     num_wires: 10
-    shield: true
+    type: bundle
 
 ferrules:
   F_test:
@@ -25,9 +26,6 @@ connections:
     - X1: [1-3]
     - W1: [1-3]
     - X2: [1-3]
-  -
-    - X1: 4
-    - W1: s
   -
     - F_test
     - W1: [4-10]
diff --git a/src/wireviz.py b/src/wireviz.py
index fa47aea..63d803c 100644
--- a/src/wireviz.py
+++ b/src/wireviz.py
@@ -6,7 +6,6 @@ COLOR_CODES = {'DIN': ['WH','BN','GN','YE','GY','PK','BU','RD','BK','VT'], # ,'G
                'IEC': ['BN','RD','OG','YE','GN','BU','VT','GY','WH','BK'],
                'BW':  ['BK','WH']}
 
-# TODO: parse and render double-colored cables ('RDBU' etc)
 color_hex = {
              'BK': '#000000',
              'WH': '#ffffff',
@@ -15,7 +14,7 @@ color_hex = {
              'RD': '#ff0000',
              'OG': '#ff8000',
              'YE': '#ffff00',
-             'GN': '#009900',
+             'GN': '#00ff00',
              'TQ': '#00ffff',
              'BU': '#0066ff',
              'VT': '#8000ff',
@@ -79,17 +78,25 @@ class Harness:
         dot.body.append('// Graph generated by WireViz')
         dot.body.append('// https://github.com/formatc1702/WireViz')
         font = 'arial'
-        dot.attr('graph', rankdir='LR', ranksep='2', bgcolor='transparent', fontname=font)
-        dot.attr('node', shape='record', style='rounded,filled', fillcolor='white', fontname=font)
-        dot.attr('edge', style='bold', fontname=font)
+        dot.attr('graph', rankdir='LR',
+                          ranksep='2',
+                          bgcolor='transparent',
+                          nodesep='0.33',
+                          fontname=font)
+        dot.attr('node', shape='record',
+                         style='filled',
+                         fillcolor='white',
+                         fontname=font)
+        dot.attr('edge', style='bold',
+                         fontname=font)
 
         # prepare ports on connectors depending on which side they will connect
         for k, c in self.cables.items():
             for x in c.connections:
-                if x[1] is not None: # connect to left
-                    self.nodes[x[0]].ports_right = True
-                if x[4] is not None: # connect to right
-                    self.nodes[x[3]].ports_left = True
+                if x.from_port is not None: # connect to left
+                    self.nodes[x.from_name].ports_right = True
+                if x.to_port is not None: # connect to right
+                    self.nodes[x.to_name].ports_left = True
 
         for k, n in self.nodes.items():
             # a = attributes
@@ -118,9 +125,9 @@ class Harness:
                     loop_dir = 'e'
                 else:
                     raise Exception('No side for loops')
-                for x in n.loops:
-                    dot.edge('{name}:p{port_from}{loop_side}:{loop_dir}'.format(name=n.name, port_from=x[0], port_to=x[1], loop_side=loop_side, loop_dir=loop_dir),
-                             '{name}:p{port_to}{loop_side}:{loop_dir}'.format(name=n.name, port_from=x[0], port_to=x[1], loop_side=loop_side, loop_dir=loop_dir))
+                for loop in n.loops:
+                    dot.edge('{name}:p{port_from}{loop_side}:{loop_dir}'.format(name=n.name, port_from=loop[0], port_to=loop[1], loop_side=loop_side, loop_dir=loop_dir),
+                             '{name}:p{port_to}{loop_side}:{loop_dir}'.format(name=n.name, port_from=loop[0], port_to=loop[1], loop_side=loop_side, loop_dir=loop_dir))
 
         for k, c in self.cables.items():
             # a = attributes
@@ -147,26 +154,69 @@ class Harness:
                     p[1].append('<ws>Shield')
             # l = label
             l = [c.name if c.show_name else '', a, p]
-            dot.node(k, label=nested(l))
+            if c.type == 'bundle':
+                # create subgraph for wire bundle, add to main graph afterwards
+                bun = Graph(name='cluster_{}'.format(k))
+                labeltext = ' | '.join(p for p in a if p) + '\n ' # newline to add space between label and wires
+                bun.attr('graph', label=labeltext,
+                                  style='filled, dashed',
+                                  fillcolor='white')
+                bun.attr('node', shape='point',
+                                 label='',
+                                 fixedsize='true',
+                                 width='0', height='0')
+                for i, x in enumerate(c.colors,1):
+                    bun.node('{}_w{}l'.format(k,i))
+                    bun.node('{}_w{}r'.format(k,i))
+            else:
+                dot.node(k, label=nested(l))
+
+            # add bundle subgraph to main graph
+            if c.type == 'bundle':
+                dot.subgraph(bun)
 
             # connections
+            existing_connections = [] # for bundles, avoid multiple edges between a bundle's wire's start and end node
             for x in c.connections:
-                if isinstance(x[2], int): # check if it's an actual wire and not a shield
-                    search_color = c.colors[x[2]-1]
+                if isinstance(x.via_port, int): # check if it's an actual wire and not a shield
+                    search_color = c.colors[x.via_port-1]
                     if search_color in color_hex:
                         dot.attr('edge',color='#000000:{wire_color}:#000000'.format(wire_color=color_hex[search_color]))
                     else: # color name not found
                         dot.attr('edge',color='#000000')
                 else: # it's a shield connection
                     dot.attr('edge',color='#000000')
-                if x[1] is not None: # connect to left
-                    dot.edge('{from_name}:p{from_port}r'.format(from_name=x[0],from_port=x[1]),
-                             '{via_name}:w{via_wire}{via_subport}'.format(via_name=c.name, via_wire=x[2], via_subport='i' if c.show_pinout else ''))
-                    # self.nodes[x[0]].ports_right = True
-                if x[4] is not None: # connect to right
-                    dot.edge('{via_name}:w{via_wire}{via_subport}'.format(via_name=c.name, via_wire=x[2], via_subport='o' if c.show_pinout else ''),
-                             '{to_name}:p{to_port}l'.format(to_name=x[3], to_port=x[4]))
-                    # self.nodes[x[3]].ports_left = True
+
+                if c.type == 'bundle':
+                    labeltext = '{sp}{color}'.format(color=translate_color(c.colors[x.via_port-1], self.color_mode), sp=' ' * 35)
+                    if x.via_port not in existing_connections:
+                        dot.edge('{via_name}_w{via_wire}l'.format(via_name=c.name, via_wire=x.via_port),
+                                 '{via_name}_w{via_wire}r'.format(via_name=c.name, via_wire=x.via_port),
+                                 taillabel=labeltext,
+                                 labelangle='60',
+                                 labeldist='0')
+                        existing_connections.append(x.via_port)
+
+                if x.from_port is not None: # connect to left
+                    if c.type == 'bundle':
+                        dot.edge('{from_name}:p{from_port}r'.format(from_name=x.from_name, from_port=x.from_port),
+                                 '{via_name}_w{via_wire}l:w'.format(via_name=c.name, via_wire=x.via_port),
+                                 headlabel='{}{}:{}'.format(' ' * 12, x.from_name, x.from_port),
+                                 labelangle='-60',
+                                 labeldist='0')
+                    else:
+                        dot.edge('{from_name}:p{from_port}r'.format(from_name=x.from_name, from_port=x.from_port),
+                                 '{via_name}:w{via_wire}{via_subport}'.format(via_name=c.name, via_wire=x.via_port, via_subport='i' if c.show_pinout else ''))
+                if x.to_port is not None: # connect to right
+                    if c.type == 'bundle':
+                        dot.edge('{via_name}_w{via_wire}r:e'.format(via_name=c.name, via_wire=x.via_port),
+                                 '{to_name}:p{to_port}l'.format(to_name=x.to_name, to_port=x.to_port),
+                                 taillabel='{}:{}{}'.format(x.to_name, x.to_port,' ' * 12),
+                                 labelangle='60',
+                                 labeldist='0')
+                    else:
+                        dot.edge('{via_name}:w{via_wire}{via_subport}'.format(via_name=c.name, via_wire=x.via_port, via_subport='o' if c.show_pinout else ''),
+                                 '{to_name}:p{to_port}l'.format(to_name=x.to_name, to_port=x.to_port))
 
         return dot
 
@@ -184,8 +234,8 @@ class Node:
     gender: str = None
     num_pins: int = None
     pinout: List[Any] = field(default_factory=list)
-    show_name: bool = False
-    show_num_pins: bool = False
+    show_name: bool = True
+    show_num_pins: bool = True
 
     def __post_init__(self):
         self.ports_left = False
@@ -206,6 +256,7 @@ class Node:
 @dataclass
 class Cable:
     name: str
+    type: str = None
     mm2: float = None
     awg: int = None
     show_equiv: bool = False
@@ -214,7 +265,7 @@ class Cable:
     shield: bool = False
     colors: List[Any] = field(default_factory=list)
     color_code: str = None
-    show_name: bool = False
+    show_name: bool = True
     show_pinout: bool = False
     show_num_wires: bool = True
 
@@ -252,11 +303,20 @@ class Cable:
         if len(from_pin) != len(to_pin):
             raise Exception('from_pin must have the same number of elements as to_pin')
         for i, x in enumerate(from_pin):
-            self.connections.append((from_name, from_pin[i], via_pin[i], to_name, to_pin[i]))
+            # self.connections.append((from_name, from_pin[i], via_pin[i], to_name, to_pin[i]))
+            self.connections.append(Connection(from_name, from_pin[i], via_pin[i], to_name, to_pin[i]))
 
     def connect_all_straight(self, from_name, to_name):
         self.connect(from_name, 'auto', 'auto', to_name, 'auto')
 
+@dataclass
+class Connection:
+    from_name: Any
+    from_port: Any
+    via_port:  Any
+    to_name:   Any
+    to_port:   Any
+
 def nested(input):
     l = []
     for x in input:
@@ -286,7 +346,7 @@ def translate_color(input, color_mode):
         if color_mode == 'full':
             output = color_full[input].lower()
         elif color_mode == 'FULL':
-            output = color_hex[input].upper()
+            output = color_full[input].upper()
         elif color_mode == 'hex':
             output = color_hex[input].lower()
         elif color_mode == 'HEX':
diff --git a/src/yaml2wireviz.py b/src/yaml2wireviz.py
index b922d4e..2275e3c 100644
--- a/src/yaml2wireviz.py
+++ b/src/yaml2wireviz.py
@@ -4,6 +4,7 @@ import wireviz
 filename = '../examples/example1.yml'
 filename = '../examples/example2.yml'
 filename = '../examples/ferrules.yml'
+filename = '../examples/bundles.yml'
 
 def check_designators(what, where):
     for i, x in enumerate(what):
diff --git a/todo.md b/todo.md
index f27e892..2bb0277 100644
--- a/todo.md
+++ b/todo.md
@@ -1,28 +1,58 @@
 # To-do:
 
-* Set global parameters (show_pins, ...) and allow override on per-item basis
+## Support for more connector types
+
 * Generic connectors
-  * ferrules
-  * blade terminals
-  * loose ends
-  * graphical representation?
-* Support for cable splicing (as connector type)
-* new wire look?
-  * distinguish between cables and wire bundles
-* improve nomenclature
+  * Ferrules
+  * Blade terminals
+  * Loose ends / stubs
+  * Graphical representation?
+* Inline connectors (IDC)
+  * Possibly join two logical wires into one physical wire, add up length for BOM creation
+  * Designators like W1_1, W1_2 or similar to group them?
+
+## Support for more wire types
+
+* Coax cables
+  * Graphical representation
+* Twisted pairs
+  * Logical representation
+  * Graphical representation
+* Ribbon cables
+  * Folds
+  * Splits
+  * Orientation of IDC connectors
+
+## Support for more links/connections
+
+* Cable splicing
+  * as pseudo-connector?
+* Heatshrink / sheathing
+
+## Visualization
+
+* Parse and render double-colored, striped cables ('RDBU' etc)
+* Show from/to inside wire node (better netlist)
+  * Implemented in wire bundles only
+* Display picture of connector underneath (including pin 1 location)
+
+## Export
+
+* Export to PDF with frame, title block, ...
+* Automatic BOM generation
+
+## Other
+
+* Set global parameters (show_pins, ...) and allow override on per-item basis
+* Improve nomenclature
   * terminal (connector, ferrule, blade, loose)
   * link (cable, wire bundle)
-* show from/to inside wire node
 * Allow custom GraphViz code before/after WireViz-generated code
-* Display picture of connector underneath (including pin 1 location)
-* export to PDF with frame, title block, ...
-* Automatic BOM generation
-* Allow
-* make "unit tests" for different features/situations
-  * missing parameters
-  * connection formats
+* Make "unit tests" for different features/situations
+  * Missing parameters
+  * Connection formats
     * single wire       1
     * multiple wires    [1,2,3]
     * wire ranges       [1-10]
-  * loops
+  * Loops
   * ...