dn: adjust the look of Entries

dn/kit-browser.cpp

@@ -2249,6 +2249,7 @@ make_item(Browser &b, const Spec &spec)
 	if (spec.kind == Kind::Search) {
 		auto e = make_unique<Entry>();
 		b.search_ = e.get();
+		e->flat = true;
 		e->placeholder = QStringLiteral("Filter");
 		e->on_change = [&b](Kit &) {
 			scan_dir(b);

dn/kit.cpp

@@ -1026,13 +1026,15 @@ Entry::paint(Kit &kit) const
 	if (!this->Widget::shown() || this->r.empty())
 		return;
 
-	// The border always says where the field is; only the fill is conditional.
-	// An idle, empty field lets the toolbar show through, and text in it is a
-	// filter the listing is already obeying, so that fills even unfocused, as
-	// the only thing on screen explaining why files are missing.
+	// A flat idle field lets the toolbar show through.  Text in it is a filter
+	// the listing is already obeying, so that restores the background even
+	// unfocused, as the only thing on screen explaining why files are missing.
 	const float hair = float(kit.hairline());
-	if (this->focused_ || !this->text.isEmpty())
-		kit.draw_fill(this->r, col(kit.colours_[ColourFrame]));
+	if (!this->flat || this->focused_ || !this->text.isEmpty())
+		kit.list_.add_rect_filled_vgradient(this->r.x, this->r.y,
+			this->r.x + this->r.w, this->r.y + this->r.h,
+			col(kit.colours_[ColourEntryTop]),
+			col(kit.colours_[ColourEntryBottom]));
 	kit.draw_border(this->r, col(kit.colours_[ColourDivider]), hair);
 
 	const Rect in = this->r.inset(kit.px(this->pad_x), kit.px(kEntryPadY));
@@ -4256,6 +4258,8 @@ Kit::bake_colours(dawn::Cmm *cmm, dawn::Profile *target)
 		this->colours_[ColourBusy] = bake_rgb(cmm, target, 0xc0, 0x00, 0x00);
 		this->colours_[ColourInk] = bake_grey(cmm, target, 0xff);
 		this->colours_[ColourFrame] = bake_grey(cmm, target, 0x00);
+		this->colours_[ColourEntryTop] = bake_grey(cmm, target, 0x10);
+		this->colours_[ColourEntryBottom] = this->colours_[ColourFrame];
 		this->colours_[ColourPanel] = bake_grey(cmm, target, 0x28);
 		this->colours_[ColourHint] = bake_rgb(cmm, target, 0x88, 0x77, 0x00);
 	} else {
@@ -4268,6 +4272,8 @@ Kit::bake_colours(dawn::Cmm *cmm, dawn::Profile *target)
 		this->colours_[ColourBusy] = bake_rgb(cmm, target, 0x8b, 0x00, 0x00);
 		this->colours_[ColourInk] = bake_grey(cmm, target, 0x00);
 		this->colours_[ColourFrame] = bake_grey(cmm, target, 0xff);
+		this->colours_[ColourEntryTop] = bake_grey(cmm, target, 0xf8);
+		this->colours_[ColourEntryBottom] = this->colours_[ColourFrame];
 		this->colours_[ColourPanel] = bake_grey(cmm, target, 0xf0);
 		this->colours_[ColourHint] = bake_rgb(cmm, target, 0xff, 0xee, 0x00);
 	}

dn/kit.hpp

@@ -89,6 +89,8 @@ enum : uint8_t {
 	ColourBusy,
 	ColourInk,
 	ColourFrame,
+	ColourEntryTop,
+	ColourEntryBottom,
 	ColourPanel,
 	ColourHint,
 	ColourCount,
@@ -256,6 +258,7 @@ struct Entry : Widget {
 	int preedit_caret = 0;
 	float min_w = 160.f;
 	float pad_x = kFramePadX;
+	bool flat = false;
 	// A field takes what room it is given -- in the overflow popup it moved
 	// into as much as in the bar, where it fills out the rest of the line it
 	// wrapped onto.
@@ -820,11 +823,11 @@ struct Kit {
 	}
 
 	// An appropriately thick rule, border or caret, in device pixels.
-	[[nodiscard]] int hairline() const { return std::min(px(1.f), 1); }
+	[[nodiscard]] int hairline() const { return std::max(px(1.f), 1); }
 
 	// One icon square, in device pixels: the size pack_icon() rasterises at,
 	// and the size the quad that samples it is drawn at.
-	[[nodiscard]] int icon_px() const { return std::min(px(kIconPts), 16); }
+	[[nodiscard]] int icon_px() const { return std::max(px(kIconPts), 16); }
 
 	// Raw atlas bytes: 16-bit RGBA UNORM, 8 bytes/pixel, row-major.
 	[[nodiscard]] bool font_pixels(