Terence Eden. He has a beard and is smiling.

Terence Eden’s Blog

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Dark Mode and Transparent Images

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A Hhrd to read image. The text is black, but so is most of the background. Bits have a white background.

Dark Mode is the new cool. Apps which automatically switch to an eye-friendly palette when lighting conditions are poor. Nifty! Most of the time, it's as simple as making the text a lightish colour, and the background a darkish colour. But all that fails when you use transparencies in images. Here's a quick example. Using the GitHub app in dark mode, I visited a repo which used a transparent…

This SVG always shows today's date

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A graphic of a calendar showing the date "February 25 Sunday"

For my contact page, I wanted a generic calendar icon to let people view my diary. Calendar icons are almost always a skeuomorph of a paper calendar, but I wondered if I could make it slightly more useful by creating a dynamic icon. Here it is, an SVG calendar which always display's today's date: The background image is derived from the Twitter TweMoji Calendar icon - CC-BY. Text support in …

Are Designers Crazy?

· 81 comments · 1,050 words · Viewed ~51,428 times


...or do I just need new glasses? I'm not a graphic designer. I find it hard to get into the mindset of excellence through beauty. I understand user flow, interactions, happy paths, delighting the user, humane design, and so on - but when it comes to the art of making something look nice I'm all at sea. I understand that, as Aral Balkan so perfectly puts it, design is not veneer - but that…

Police And Blue Boxes

· 150 words


The journalist Shiv Malik took a rather intriguing photo at the recent student protests. It appears to show a group of police officers gathered around a blue box. No one seems to know what the box is for. I'm sure it's got a rather prosaic function - but that doesn't stop the speculation! As soon I saw it, I could think of only one thing; chroma-key! (Or Colour Separation Overlay if you're…

Hiding Space Invaders In QR Codes

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One of the lovely aspects of QR codes is the variable levels of error correction built in.  On even the most basic code you can obscure or deform up to 7% of the code and most readers will still decode it. This leads us in to the amusing territory of "hiding" human readable data in the code.  I say "hiding" because we are hiding it from the scanner - not from the human. One of the more famous e…