I have this code here to create a lean canvas:


```
\documentclass{article}

\usepackage[a1paper, landscape]{geometry}
\usepackage[UKenglish]{babel}
\pagenumbering{gobble}
\usepackage{hyperref}

\usepackage{tikz}

\title{}
\author{}

\begin{document}

\centering
\def\layersep{9.7em}
\def\layerwidth{75em}

\makebox[\textwidth][c]{
  \begin{tikzpicture}[
      % Define block parameters (mostly shape)
      bloc/.style={
        rectangle, rounded corners,
        draw=black!30, very thick, inner sep=0,
      },
      invisible/.style={
        rectangle, draw=none,
        inner sep=0,
      },
      bloc1/.style={
        bloc,
        text width = \layerwidth/5*0.95,
        minimum width = \layerwidth/5,
        minimum height= 4*\layersep
      },
      bloc2/.style={
        bloc,
        text width = \layerwidth/5*0.95,
        minimum width=\layerwidth/5,
        minimum height=2*\layersep
      },
      bloc3/.style={
        bloc,
        text width=\layerwidth/2*0.95,
        minimum width=\layerwidth/2,
        minimum height=\layersep
      },
      invisible_bloc1/.style={
        invisible,
        text width=\layerwidth/5*0.95,
        minimum width=\layerwidth/5,
        minimum height=\layersep
      },
      invisible_bloc2/.style={
        invisible,
        text width=\layerwidth/5*0.95,
        minimum width=\layerwidth/5,
        minimum height=3*\layersep
      },
      title/.style={
        anchor=north west,
        color=black!50,
        font=\bfseries
      },
      subtitle/.style={
        anchor=north west,
        color=black!50,
        font=\bfseries
      },
    ]
    
    %%%%%%%%%%%%%%%%%%%%%%%%%
    %%%% DRAW THE CANVAS %%%%
    %%%%%%%%%%%%%%%%%%%%%%%%%

    % first the block, then the title
    
    % 1. PROBLEM
    \node[bloc1] (b1) at (0*\layerwidth/10,4*\layersep) {};
    \node[title] at (b1.north west) {\underline{Problem}};
    
    \node[invisible_bloc2] (b11) at (0*\layerwidth/10,4.45*\layersep) {
      List your top 1-3 problems.
    };

    % 4. SOLUTION
    \node[bloc2] (b2) at (2*\layerwidth/10,5*\layersep) {
      Outline a possible solution for each problem.
    };
    \node[title] at (b2.north west) {\underline{Solution}};

    % 8. KEY METRICS
    \node[bloc2] (b3) at (2*\layerwidth/10,3*\layersep) {
      List the key numbers that tell you how your business is doing.
    };
    \node[title] at (b3.north west) {\underline{Key Metrics}};

    % 7. COST STRUCTURE
    \node[bloc3] (b4) at (1.5*\layerwidth/10,1.5*\layersep) {
      List your fixed and variable costs.
    };
    \node[title] at (b4.north west) {\underline{Cost Structure}};

    % 6. REVENUE STREAMS
    \node[bloc3] (b5) at (6.5*\layerwidth/10,1.5*\layersep) {
      List your sources of revenue.
    };
    \node[title] at (b5.north west) {\underline{Revenue Streams}};

    % 3. UNIQUE VALUE PROPOSITIONS
    \node[bloc1] (b6) at (4*\layerwidth/10,4*\layersep) {};
    \node[title] at (b6.north west) {\underline{Unique Value Propositions}};
    
    \node[invisible_bloc2] (b61) at (4*\layerwidth/10,4.45*\layersep) {
      Single, clear, compelling message that states why you are different and worth paying attention.
    };

    % 9. UNFAIR ADVANTAGE
    \node[bloc2] (b7) at (6*\layerwidth/10,5*\layersep) {
      Something that cannot easily be bought or copied.
    };
    \node[title] at (b7.north west) {\underline{Unfair Advantage}};

    % 5. CHANNELS
    \node[bloc2] (b8) at (6*\layerwidth/10,3*\layersep) {
      List your path to customers (inbound or outbound).
    };
    \node[title] at (b8.north west) {\underline{Channels}};


    % 2. CUSTOMER SEGMENTS
    \node[bloc1] (b9) at (8*\layerwidth/10,4*\layersep) {};
    \node[title] at (b9.north west) {\underline{Customer Segments}};
    
    \node[invisible_bloc2] (b91) at (8*\layerwidth/10,4.45*\layersep) {
      List your target customers and users.
    };

  \end{tikzpicture}
}

\end{document}
```

I am trying to size the whole thing to fit the whole page. Also can be code be shortened? Maybe a macro to make it easier? How can I add colour to the lines and text (better UI)?

Trying to make something like this:
![](https://miro.medium.com/max/1077/1*VY2L_nmmXXn4cFUyB5tXxw.jpeg)

![](https://s3.amazonaws.com/leancanvas_production/rYCHRVGA3vtikH11Noe2zndA?response-content-disposition=inline%3B%20filename%3D%22lean-canvas.png%22%3B%20filename%2A%3DUTF-8%27%27lean-canvas.png&response-content-type=image%2Fpng&X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=AKIAJSCGXZQJ5F4ILXOQ%2F20201130%2Fus-east-1%2Fs3%2Faws4_request&X-Amz-Date=20201130T104759Z&X-Amz-Expires=10800&X-Amz-SignedHeaders=host&X-Amz-Signature=ec93cd50889b07ae8d65ea3426bd9635256da64e6bc3ff3783132e283c99ba65)