Button

Use lcsButton wherever people start an action: Save, Submit, Export, Edit. Compared with a plain button, it gives you:

• Four looks from one input, Appearance: Primary, Secondary, Outline and Subtle.
• Your brand colour from one input, AccentColor. Hover and pressed colours are worked out from it, so any colour looks right.
• Light or dark. Set Theme to "Dark" on a dark screen: text and borders turn light.
• Select again to confirm. Set RequireConfirm to true for actions that can't be undone. The first select turns the button red and says "Select again"; OnClick runs only if it's selected again within ConfirmSeconds, otherwise it goes back to normal. No dialog to build.
• A busy state. Set IsBusy to true while a Patch or flow runs. The button is disabled and says "Working…", so nobody submits twice.
• A click count (ClickCount) and an OnClick event that receives it.
• Your own label format through FormatLabel, and a ResetCount() action.

The examples call the button on your screen MyButton.

Save a form and show progress while it saves:

// MyButton.IsBusy
locSaving

// MyButton.OnClick
Set(locSaving, true);
IfError(
    Patch(Requests, Defaults(Requests), { Title: txtTitle.Text }),
    Notify("Couldn't save: " & FirstError.Message, NotificationType.Error)
);
Set(locSaving, false)

Show the label in capitals with the input function:

// MyButton.FormatLabel
Upper(Text)

Check a label before using it, with the output function:

MyButton.IsValidLabel(txtLabel.Text)

Guard a delete without a dialog:

// btnDeleteAll.RequireConfirm
true

// btnDeleteAll.Label
"Delete all"

// btnDeleteAll.OnClick
RemoveIf(Requests, Status = "Draft"); Notify("Drafts deleted.", NotificationType.Success)

Match your brand, on a dark screen:

// MyButton.AccentColor
ColorValue("#7C3AED")

// MyButton.Theme
"Dark"

Start counting again from another control:

MyButton.ResetCount()

Nothing changes: the button holds no data, so OnClick saves to Dataverse with Patch as to any source. Show it working while it saves:

// MyButton.IsBusy
locSaving

// MyButton.OnClick
Set(locSaving, true);
Patch(Requests, Defaults(Requests), { Title: txtTitle.Text });
Set(locSaving, false)

• The inner button's AccessibleLabel is the Label, so screen readers announce what it does. Keep labels short and specific: "Save request", not "Click here".
• It works with the keyboard: Tab to it, then press Enter or Space.
• While busy it's disabled, and its text changes to "Working…", so the state is visible as well as announced. With Motion on (the default), a soft shade sweeps across it once as it starts working, in about a second; none plays for people who've asked their device for reduced motion, and Motion set to false leaves it still, as in 0.2.0.
• While it waits for the confirming select, its text and accessible name change to ConfirmLabel and it shows a warning icon, so the state isn't shown by colour alone. Four seconds is the default; give people longer if your users need it.
• Pick an AccentColor dark enough for white text (4.5:1). The default blue and most brand blues, purples and greens are.

• Function properties (FormatLabel, IsValidLabel) can only use their own parameters, not variables or the component's other properties. That's how Power Apps works.
• In a component library, a component can't use AccessAppScope. This one doesn't need it.
• The confirm wait uses a timer, and Power Apps Studio runs timers only in preview (F5). In the published app it always runs.
• The modern button has no fill colour of its own, so on a dark screen Secondary is drawn as Outline and Subtle as Transparent (Subtle's light hover would hide light text). While busy it's the modern button's own light grey, in both themes.
• IconName takes a Fluent icon name, such as Checkmark, Send or Edit. A name the modern button doesn't know shows no icon.

• 0.3.1: the guide's examples read a text input's Text, as Microsoft documents it (they said Value); the YAML is unchanged, so there's nothing new to paste-test.
• 0.3.0: motion: a soft shade sweeps across the button once when it starts working (skipped for reduced motion); a Motion input turns it off. With Motion off, it's exactly 0.2.0. Hover, pressed and the confirm step don't move: a picture over the button would take its clicks and hover.
• 0.2.0: AccentColor and Theme; RequireConfirm, ConfirmLabel, ConfirmSeconds and the IsArmed output.
• 0.1.0: first version; passed the paste-test in Power Apps Studio 3.26094.8.