Text size and colours — Crystal Cavern

In Crystal Cavern you can choose the text size and the colour scheme yourself. This page shows where the settings are and gives a rough guide to which one to pick when.

Where the settings are

Open the Menu tab in the game to find Text size and Background and colours. Pressing a button changes the screen straight away. Your choice is saved automatically, so it is still there next time.

These are set inside the game, separately from the text size setting on your iPhone.

Text size (four steps)

There are four steps: Small, Normal, Large and Largest. Not only the body text but the crystal count, the buttons, and even the numbers like "+100" that float up when you tap all grow together.

Size	When to use it
Small	When you want to see many buildings at once
Normal	Start here. If unsure, keep it
Large	When you hold the phone a little further away, or small text is hard to see
Largest	When reading is a strain. Checked so that nothing spills off the screen, even on a narrow iPhone

Background and colours (five schemes)

There are five colour schemes. The first three are for atmosphere; the last two are high-contrast schemes with the contrast turned all the way up. In every scheme, the difference in brightness between text and background has been measured and adjusted so text never fades into the background.

The Cave scheme: gold crystal on dark brown — **Cave**The starting scheme. Gold on dark brown

The Deep sea scheme: deep blue-green background — **Deep sea**Deep blue-green. Calm

The Dusk scheme: dark purplish background — **Dusk**A dark, purplish tone

High contrast (dark): white text on pure black — **High contrast (dark)**White on black

High contrast (light): black text on white — **High contrast (light)**Black on white

As a rough guide:

At night or in a dark room: Cave, Deep sea, Dusk, or High contrast (dark). These are less glaring
Outdoors or somewhere bright: High contrast (light). Text stays readable even in sunlight
When text seems to melt into the background: High contrast (dark) or (light). These have the biggest difference between text and background

If you find colours hard to tell apart

The game is built so that nothing important is shown by colour alone. Buildings you can afford have a "▸" before the price. In ×1, ×10 and ×MAX, the chosen one is marked in bold with a thick underline. Whatever scheme you pick, there is always a mark besides colour.

If you want less motion

Turn on Reduce Motion on your iPhone (Settings → Accessibility → Motion) and the bonus orb crosses in a straight line instead of bobbing, and the crystal swells less when tapped. There is nothing to set inside the game.

What I use myself

I play with the text on Normal and the colours on Deep sea. There is no special reason. I just looked at it and thought, "I like this one".

There is no right answer for readability. If unsure, start with Normal and Cave, and change the size or colours if something feels hard to read. Playing in colours you like is what matters most.