Transparency and blend modes

Half-transparent fills that overlap and mix, and one orange square laid over a blue bar in four different ways of mixing colours.

Two things one drawing setting opens. The first is transparency: three rectangles each drawn half transparent, so the colours show through one another where they overlap, which is what a highlight or a watermark needs.

The second is the way colours mix. The same orange square is laid over the same blue bar four times, mixed a different way each time, so the colour that comes out is enough to say which way was used. Both settings are stated once and apply to everything drawn afterwards, until they are taken back off.

What this example shows

  • The transparency of the fill and of the line, set in one go.
  • Four ways of mixing, over the same two colours.
  • A setting stated once and applied to everything after it.

The code, in full

The same document is written twice, once in each language. Both files are shown in full, with the code coloured on the server, and can be copied in one click.

The document itself

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First page of Transparency and blend modes

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Examples near this one

Cutting out what you draw

A field of stripes shown through two cut-outs: a disc from the nonzero rule, and a frame from the even-odd rule over two nested rectangles.

Gradients in a line and in a circle

Gradients in a line and in a circle painted into boxes the page cuts out: a two-colour blend across and another on the diagonal, a circular one whose outer colour is carried out to the corners, and one passing through three colours.

Text and shapes filled with a gradient

A gradient used as the colour something is filled with: a headline whose letters are windows onto a blend of three colours, and a panel filled with a circular one.

Content shown and hidden by layer

One floor plan on four layers a reader shows and hides: the furniture and the dimensions shown, the notes hidden until asked for, and a draft mark that is looked at but never printed.

One drawing, placed many times

One badge built as a drawing and placed eight times, plus once at half size: the file holds the drawing once, however many times it is placed.

One pattern, repeated across whatever it fills

Six panels filled with repeating patterns — bars, dots, a slant got without redrawing the pattern, a brick wall, two patterns crossing, a wider gap — and a logo whose letters are windows onto the bricks.

Every example, by subject

Glossary

watermark
Wording printed across the page itself, saying the document was made with a free account. It cannot be removed from the file; a paid tier simply never puts it there.