Touch RPN for iOS: Settings

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To open the new Settings pane, press the ≡ button, then "More..." at the right top corner, to access the preferences panel.

Figure 1: Settings pane

Number format: decimal and thousands separator. Three formats are available: USA, European and Indian.
Layout: in Auto mode, layout follows phone (or window) orientation. In modes Landscape or Portrait, layout is locked to horizontal or vertical, respectively.
Tactile feedback: Sound and/or vibration (haptic) on every keypress.
Visual feedback: When enabled, shows a key-down animation (A) or a small green rectangle (B) when a key is touched.
Fast program execution: When enabled, programs run at maximum possible speed. When disabled, programs run in a speed similar to a real calculator.
Don't sleep: When enabled, the display will stay fully lit and unlocked while the app is on-screen.
Stretch to fill screen: how much the interface is "stretched" to fill more of the screen. Using more screen estate means easier typing, but the app may look different from a physical calculator.
Stretch distortion: regulates how interface "stretching" happens: by spacing keys farther apart, by distorting their aspect, or a combination of both methods.
Color editor: opens the Color Editor pane.
Fast swap buttons: opens the Fast Swap pane.
Restore Purchases: Normally the purchases are downloaded automatically. If you feel it's taking too long, this button tries to contact App Store immediately.
Reset to Defaults: Resets all settings to post-install defaults. Even the flavor goes back to Financial (with ads). Note that purchases are always preserved, as well as memories saved in iCloud.