layerling 1.82.0

• Interactive Help: click anything to read about it (#424): As the program and the guide grow, it got hard to find where a button or a field is explained. A new question-mark button in the Help group of the ribbon (and Shift+F1, and the command search) switches the mode on and off. While it is on the pointer is a question mark and whatever has a name under it is outlined; a click on a button, field, switch, handle, ribbon group or window title does not do its usual thing but opens a small window you can move: the name of the element, a short summary of the part of the guide that fits it best, up to two more places as links, and Open in the guide, which opens that section. The help is for the element you pointed at, not for the window around it; an element without a name takes the nearest one around it or the question mark of its window, and where the guide has nothing the window says so and offers the guide's search. Controls that are switched off can be asked about too. Esc leaves the mode; on a touch screen a tap opens the window directly. There is no list of labels to keep: the guide writes buttons as {{ui:key}}, so the name on the element is the name in the guide, and it is looked up in the guide's own search index, in the language of the program, in the browser and offline. The matching of the guide's search box moved into one module (guideSearchCore.ts) that the guide pages and the program share, and a section the program sends you to is now outlined in colour in the guide, from its heading to its end. The ribbon has one more button, so its three width steps moved to 2038, 1728 and 1582 px. Asked for by a user in #424.
• Vertical edges in the edge tool (#427): Next to All sharp edges and Top edges there is Vertical edges now: it picks every edge that stands straight up, such as the corners of a box, so one fillet or chamfer rounds all the vertical corners at once. Through the AI bridge layerling_apply_edge_treatment takes edgeIds: "vertical". Asked for on GitHub.
• Loose pieces of no volume are left out of an export as well (#352): The export already left out tiny loose grains. A cut and the colour separation also leave flat sheets of two faces on each other behind, up to ten millimetres long, which hold nothing and which a slicer shows as thin strips. A loose piece that holds less than a hundredth of a cubic millimetre now goes, whatever its size and number of triangles. Reported by @Mycraftymama on GitHub.
• Touch: handles hold the drag, a long press opens the menu (#337): A finger on a resize or rotate handle was taken over by the browser for a scroll after a few pixels, so the drag ended at once: the handles say touch-action: none now. For a finger or a rubber stylus the handles catch from 15 px further out, without changing their look. A finger held still for half a second on a shape or on empty space opens the menu a right click opens, with Select all on empty space, since a tablet has neither a right button nor Ctrl+A. The guide says that a plain rubber-tip stylus counts as a finger. Reported by @cyryllo on GitHub.
• A switch between millimetres and inches beside the snap grid (#422): The unit was only in the settings, and changing it there each time took a detour. The small switch mm | in beside the snap grid at the bottom of the properties window does what the unit field of the settings does: the unit, the plate's grid and the snap step follow, for this design. Suggested by @Mycraftymama on GitHub.
• Messages stay as long as they take to read, and can be closed (#422): A message of the status line went after four seconds whatever its length, and an error text of two lines was gone before it could be read. Its time now follows its length (up to half a minute), it stays while the pointer rests on it, and a small cross closes it at once. Suggested by @Mycraftymama on GitHub.
• The browser no longer translates layerling (forum): In the installed app in Chrome, a German browser translated the page: "Hell" in the theme menu came out as "Hölle" ("Hell" is also an English word), and an English menu showed German words. The page said it was English until the chosen language was in, so the translator started on it. The page now says it is not to be translated (translate="no" and the notranslate hint), as layerling has its own languages. Reported by @Noberty in the forum.
• The question mark of the notice about designs in the browser sits in its heading: On the start page it stood at the end of the text, where its box made the last line stand further from the others than the rest. It is behind the heading now, smaller, and the three lines of the text are even.