Merge lp:~3v1n0/ubuntu-themes/windowbuttons-bg-and-padding into lp:ubuntu-themes

[Marco Trevisan (Treviño)]

Ambiance, Radiance: use static bg imgs for window buttons and add padding

With the current implementation (all css based) we could not add some padding
for improving the click-ability of the window buttons, then we've to use
static, centered, background images instead.
So, now every button is now clickable in all the vertical space it can use.

The assets are generated from provided SVGs that are actually
the same used in unity, minus the action icon (as gtk adds it).
Thus the visual quality is better as there are some slightly different
gradients.

Fixed also the distance between buttons to match original designs.

PNGs have been generated using this script:

for i in 1 2 3 4; do
  scale=$i;
  for i in *.svg; do
    rsvg-convert $i -w $((20*scale)) -h $((20*scale)) -f png -o \
     `echo $i | sed -e "s/\.svg$/@$scale.png/" | sed "s/@1//"`
  done
done

Could be the case to add this inside the theme to generate pngs this way all the times?

---

In highdpi, the margins won't be properly scaled as this needs to land
 - https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/1758376

Same, for visual quality this is needed:
 - https://bugs.launchpad.net/ubuntu/+source/gtk+3.0/+bug/1758224
 - https://gitlab.gnome.org/GNOME/gtk/merge_requests/93

[lp:~3v1n0/ubuntu-themes/windowbuttons-bg-and-padding]

611. By Marco Trevisan (Treviño) on 2018-03-27

Ambiance, Radiance: use static bg imgs for window buttons and add padding

With the current implementation (all css based) we could not add some padding
for improving the click-ability of the window buttons, then we've to use
static, centered, background images instead.
So, now every button is now clickable in all the vertical space it can use.

The assets are generated from provided SVGs that are actually
the same used in unity, minus the action icon (as gtk adds it).

Fixed also the distance between buttons to match original designs.

[Daniel van Vugt (vanvugt)]

I think you mean bug 1725133, not bug 1693609.

Bug 1693609 has nothing to do with hidpi and would be a major design change to resolve.

review: Needs Information

[Daniel van Vugt (vanvugt)]

Bug 1693609 is about making the window buttons closer to the size of Adwaita's.

[Marco Trevisan (Treviño) (3v1n0)]

No, this is not about HiDPI.

This is not either about making the button sizes bigger, but the sensible area bigger.
So, an usability fix more than appearance.

Due that bug #1693609 can't be fixed by making the buttons themselves bigger (this is the design), the experience can improved as it was done in unity already.

[Andrea Azzarone (azzar1)]

LGTM.

review: Approve

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=== added file 'Ambiance/gtk-3.0/assets/[e-mail]'
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=== added file 'Ambiance/gtk-3.0/assets/[e-mail]'
 Binary files Ambiance/gtk-3.0/assets/[e-mail]	1970-01-01 00:00:00 +0000 and Ambiance/gtk-3.0/assets/[e-mail]	2018-03-27 04:55:20 +0000 differ
=== added file 'Ambiance/gtk-3.0/assets/[e-mail]'
 Binary files Ambiance/gtk-3.0/assets/[e-mail]	1970-01-01 00:00:00 +0000 and Ambiance/gtk-3.0/assets/[e-mail]	2018-03-27 04:55:20 +0000 differ
=== added file 'Ambiance/gtk-3.0/assets/radiance-windowbutton-backdrop.png'
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--- Ambiance/gtk-3.0/assets/radiance-windowbutton-backdrop.svg	1970-01-01 00:00:00 +0000
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=== added file 'Ambiance/gtk-3.0/assets/[e-mail]'
 Binary files Ambiance/gtk-3.0/assets/[e-mail]	1970-01-01 00:00:00 +0000 and Ambiance/gtk-3.0/assets/[e-mail]	2018-03-27 04:55:20 +0000 differ
=== added file 'Ambiance/gtk-3.0/assets/[e-mail]'
 Binary files Ambiance/gtk-3.0/assets/[e-mail]	1970-01-01 00:00:00 +0000 and Ambiance/gtk-3.0/assets/[e-mail]	2018-03-27 04:55:20 +0000 differ
=== added file 'Ambiance/gtk-3.0/assets/[e-mail]'
 Binary files Ambiance/gtk-3.0/assets/[e-mail]	1970-01-01 00:00:00 +0000 and Ambiance/gtk-3.0/assets/[e-mail]	2018-03-27 04:55:20 +0000 differ
=== added file 'Ambiance/gtk-3.0/assets/radiance-windowbutton-close-active.png'
 Binary files Ambiance/gtk-3.0/assets/radiance-windowbutton-close-active.png	1970-01-01 00:00:00 +0000 and Ambiance/gtk-3.0/assets/radiance-windowbutton-close-active.png	2018-03-27 04:55:20 +0000 differ
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--- Ambiance/gtk-3.0/assets/radiance-windowbutton-close-active.svg	1970-01-01 00:00:00 +0000
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=== added file 'Ambiance/gtk-3.0/assets/[e-mail]'
 Binary files Ambiance/gtk-3.0/assets/[e-mail]	1970-01-01 00:00:00 +0000 and Ambiance/gtk-3.0/assets/[e-mail]	2018-03-27 04:55:20 +0000 differ
=== added file 'Ambiance/gtk-3.0/assets/[e-mail]'
 Binary files Ambiance/gtk-3.0/assets/[e-mail]	1970-01-01 00:00:00 +0000 and Ambiance/gtk-3.0/assets/[e-mail]	2018-03-27 04:55:20 +0000 differ
=== added file 'Ambiance/gtk-3.0/assets/[e-mail]'
 Binary files Ambiance/gtk-3.0/assets/[e-mail]	1970-01-01 00:00:00 +0000 and Ambiance/gtk-3.0/assets/[e-mail]	2018-03-27 04:55:20 +0000 differ
=== added file 'Ambiance/gtk-3.0/assets/radiance-windowbutton-close-hover.png'
 Binary files Ambiance/gtk-3.0/assets/radiance-windowbutton-close-hover.png	1970-01-01 00:00:00 +0000 and Ambiance/gtk-3.0/assets/radiance-windowbutton-close-hover.png	2018-03-27 04:55:20 +0000 differ
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--- Ambiance/gtk-3.0/assets/radiance-windowbutton-close-hover.svg	1970-01-01 00:00:00 +0000
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=== added file 'Ambiance/gtk-3.0/assets/[e-mail]'
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=== added file 'Ambiance/gtk-3.0/assets/[e-mail]'
 Binary files Ambiance/gtk-3.0/assets/[e-mail]	1970-01-01 00:00:00 +0000 and Ambiance/gtk-3.0/assets/[e-mail]	2018-03-27 04:55:20 +0000 differ
=== added file 'Ambiance/gtk-3.0/assets/[e-mail]'
 Binary files Ambiance/gtk-3.0/assets/[e-mail]	1970-01-01 00:00:00 +0000 and Ambiance/gtk-3.0/assets/[e-mail]	2018-03-27 04:55:20 +0000 differ
=== added file 'Ambiance/gtk-3.0/assets/radiance-windowbutton-close.png'
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=== added file 'Ambiance/gtk-3.0/assets/radiance-windowbutton-close.svg'
--- Ambiance/gtk-3.0/assets/radiance-windowbutton-close.svg	1970-01-01 00:00:00 +0000
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=== added file 'Ambiance/gtk-3.0/assets/[e-mail]'
 Binary files Ambiance/gtk-3.0/assets/[e-mail]	1970-01-01 00:00:00 +0000 and Ambiance/gtk-3.0/assets/[e-mail]	2018-03-27 04:55:20 +0000 differ
=== added file 'Ambiance/gtk-3.0/assets/[e-mail]'
 Binary files Ambiance/gtk-3.0/assets/[e-mail]	1970-01-01 00:00:00 +0000 and Ambiance/gtk-3.0/assets/[e-mail]	2018-03-27 04:55:20 +0000 differ
=== added file 'Ambiance/gtk-3.0/assets/[e-mail]'
 Binary files Ambiance/gtk-3.0/assets/[e-mail]	1970-01-01 00:00:00 +0000 and Ambiance/gtk-3.0/assets/[e-mail]	2018-03-27 04:55:20 +0000 differ
=== added file 'Ambiance/gtk-3.0/assets/radiance-windowbutton-hover.png'
 Binary files Ambiance/gtk-3.0/assets/radiance-windowbutton-hover.png	1970-01-01 00:00:00 +0000 and Ambiance/gtk-3.0/assets/radiance-windowbutton-hover.png	2018-03-27 04:55:20 +0000 differ
=== added file 'Ambiance/gtk-3.0/assets/radiance-windowbutton-hover.svg'
--- Ambiance/gtk-3.0/assets/radiance-windowbutton-hover.svg	1970-01-01 00:00:00 +0000
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=== added file 'Ambiance/gtk-3.0/assets/[e-mail]'
 Binary files Ambiance/gtk-3.0/assets/[e-mail]	1970-01-01 00:00:00 +0000 and Ambiance/gtk-3.0/assets/[e-mail]	2018-03-27 04:55:20 +0000 differ
=== added file 'Ambiance/gtk-3.0/assets/[e-mail]'
 Binary files Ambiance/gtk-3.0/assets/[e-mail]	1970-01-01 00:00:00 +0000 and Ambiance/gtk-3.0/assets/[e-mail]	2018-03-27 04:55:20 +0000 differ
=== added file 'Ambiance/gtk-3.0/assets/[e-mail]'
 Binary files Ambiance/gtk-3.0/assets/[e-mail]	1970-01-01 00:00:00 +0000 and Ambiance/gtk-3.0/assets/[e-mail]	2018-03-27 04:55:20 +0000 differ
=== added file 'Ambiance/gtk-3.0/assets/radiance-windowbutton.png'
 Binary files Ambiance/gtk-3.0/assets/radiance-windowbutton.png	1970-01-01 00:00:00 +0000 and Ambiance/gtk-3.0/assets/radiance-windowbutton.png	2018-03-27 04:55:20 +0000 differ
=== added file 'Ambiance/gtk-3.0/assets/radiance-windowbutton.svg'
--- Ambiance/gtk-3.0/assets/radiance-windowbutton.svg	1970-01-01 00:00:00 +0000
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=== added file 'Ambiance/gtk-3.0/assets/[e-mail]'
 Binary files Ambiance/gtk-3.0/assets/[e-mail]	1970-01-01 00:00:00 +0000 and Ambiance/gtk-3.0/assets/[e-mail]	2018-03-27 04:55:20 +0000 differ
=== added file 'Ambiance/gtk-3.0/assets/[e-mail]'
 Binary files Ambiance/gtk-3.0/assets/[e-mail]	1970-01-01 00:00:00 +0000 and Ambiance/gtk-3.0/assets/[e-mail]	2018-03-27 04:55:20 +0000 differ
=== added file 'Ambiance/gtk-3.0/assets/[e-mail]'
 Binary files Ambiance/gtk-3.0/assets/[e-mail]	1970-01-01 00:00:00 +0000 and Ambiance/gtk-3.0/assets/[e-mail]	2018-03-27 04:55:20 +0000 differ
=== added file 'Ambiance/gtk-3.0/assets/windowbutton-active.png'
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=== added file 'Ambiance/gtk-3.0/assets/windowbutton-active.svg'
--- Ambiance/gtk-3.0/assets/windowbutton-active.svg	1970-01-01 00:00:00 +0000
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=== added file 'Ambiance/gtk-3.0/assets/[e-mail]'
 Binary files Ambiance/gtk-3.0/assets/[e-mail]	1970-01-01 00:00:00 +0000 and Ambiance/gtk-3.0/assets/[e-mail]	2018-03-27 04:55:20 +0000 differ
=== added file 'Ambiance/gtk-3.0/assets/[e-mail]'
 Binary files Ambiance/gtk-3.0/assets/[e-mail]	1970-01-01 00:00:00 +0000 and Ambiance/gtk-3.0/assets/[e-mail]	2018-03-27 04:55:20 +0000 differ
=== added file 'Ambiance/gtk-3.0/assets/[e-mail]'
 Binary files Ambiance/gtk-3.0/assets/[e-mail]	1970-01-01 00:00:00 +0000 and Ambiance/gtk-3.0/assets/[e-mail]	2018-03-27 04:55:20 +0000 differ
=== added file 'Ambiance/gtk-3.0/assets/windowbutton-backdrop-active.png'
 Binary files Ambiance/gtk-3.0/assets/windowbutton-backdrop-active.png	1970-01-01 00:00:00 +0000 and Ambiance/gtk-3.0/assets/windowbutton-backdrop-active.png	2018-03-27 04:55:20 +0000 differ
=== added file 'Ambiance/gtk-3.0/assets/windowbutton-backdrop-active.svg'
--- Ambiance/gtk-3.0/assets/windowbutton-backdrop-active.svg	1970-01-01 00:00:00 +0000
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=== added file 'Ambiance/gtk-3.0/assets/[e-mail]'
 Binary files Ambiance/gtk-3.0/assets/[e-mail]	1970-01-01 00:00:00 +0000 and Ambiance/gtk-3.0/assets/[e-mail]	2018-03-27 04:55:20 +0000 differ
=== added file 'Ambiance/gtk-3.0/assets/[e-mail]'
 Binary files Ambiance/gtk-3.0/assets/[e-mail]	1970-01-01 00:00:00 +0000 and Ambiance/gtk-3.0/assets/[e-mail]	2018-03-27 04:55:20 +0000 differ
=== added file 'Ambiance/gtk-3.0/assets/[e-mail]'
 Binary files Ambiance/gtk-3.0/assets/[e-mail]	1970-01-01 00:00:00 +0000 and Ambiance/gtk-3.0/assets/[e-mail]	2018-03-27 04:55:20 +0000 differ
=== added file 'Ambiance/gtk-3.0/assets/windowbutton-backdrop-hover.png'
 Binary files Ambiance/gtk-3.0/assets/windowbutton-backdrop-hover.png	1970-01-01 00:00:00 +0000 and Ambiance/gtk-3.0/assets/windowbutton-backdrop-hover.png	2018-03-27 04:55:20 +0000 differ
=== added file 'Ambiance/gtk-3.0/assets/windowbutton-backdrop-hover.svg'
--- Ambiance/gtk-3.0/assets/windowbutton-backdrop-hover.svg	1970-01-01 00:00:00 +0000
+++ Ambiance/gtk-3.0/assets/windowbutton-backdrop-hover.svg	2018-03-27 04:55:20 +0000
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=== added file 'Ambiance/gtk-3.0/assets/[e-mail]'
 Binary files Ambiance/gtk-3.0/assets/[e-mail]	1970-01-01 00:00:00 +0000 and Ambiance/gtk-3.0/assets/[e-mail]	2018-03-27 04:55:20 +0000 differ
=== added file 'Ambiance/gtk-3.0/assets/[e-mail]'
 Binary files Ambiance/gtk-3.0/assets/[e-mail]	1970-01-01 00:00:00 +0000 and Ambiance/gtk-3.0/assets/[e-mail]	2018-03-27 04:55:20 +0000 differ
=== added file 'Ambiance/gtk-3.0/assets/[e-mail]'
 Binary files Ambiance/gtk-3.0/assets/[e-mail]	1970-01-01 00:00:00 +0000 and Ambiance/gtk-3.0/assets/[e-mail]	2018-03-27 04:55:20 +0000 differ
=== added file 'Ambiance/gtk-3.0/assets/windowbutton-backdrop.png'
 Binary files Ambiance/gtk-3.0/assets/windowbutton-backdrop.png	1970-01-01 00:00:00 +0000 and Ambiance/gtk-3.0/assets/windowbutton-backdrop.png	2018-03-27 04:55:20 +0000 differ
=== added file 'Ambiance/gtk-3.0/assets/windowbutton-backdrop.svg'
--- Ambiance/gtk-3.0/assets/windowbutton-backdrop.svg	1970-01-01 00:00:00 +0000
+++ Ambiance/gtk-3.0/assets/windowbutton-backdrop.svg	2018-03-27 04:55:20 +0000
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=== added file 'Ambiance/gtk-3.0/assets/[e-mail]'
 Binary files Ambiance/gtk-3.0/assets/[e-mail]	1970-01-01 00:00:00 +0000 and Ambiance/gtk-3.0/assets/[e-mail]	2018-03-27 04:55:20 +0000 differ
=== added file 'Ambiance/gtk-3.0/assets/[e-mail]'
 Binary files Ambiance/gtk-3.0/assets/[e-mail]	1970-01-01 00:00:00 +0000 and Ambiance/gtk-3.0/assets/[e-mail]	2018-03-27 04:55:20 +0000 differ
=== added file 'Ambiance/gtk-3.0/assets/[e-mail]'
 Binary files Ambiance/gtk-3.0/assets/[e-mail]	1970-01-01 00:00:00 +0000 and Ambiance/gtk-3.0/assets/[e-mail]	2018-03-27 04:55:20 +0000 differ
=== added file 'Ambiance/gtk-3.0/assets/windowbutton-close-active.png'
 Binary files Ambiance/gtk-3.0/assets/windowbutton-close-active.png	1970-01-01 00:00:00 +0000 and Ambiance/gtk-3.0/assets/windowbutton-close-active.png	2018-03-27 04:55:20 +0000 differ
=== added file 'Ambiance/gtk-3.0/assets/windowbutton-close-active.svg'
--- Ambiance/gtk-3.0/assets/windowbutton-close-active.svg	1970-01-01 00:00:00 +0000
+++ Ambiance/gtk-3.0/assets/windowbutton-close-active.svg	2018-03-27 04:55:20 +0000
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=== added file 'Ambiance/gtk-3.0/assets/[e-mail]'
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=== added file 'Ambiance/gtk-3.0/assets/[e-mail]'
 Binary files Ambiance/gtk-3.0/assets/[e-mail]	1970-01-01 00:00:00 +0000 and Ambiance/gtk-3.0/assets/[e-mail]	2018-03-27 04:55:20 +0000 differ
=== added file 'Ambiance/gtk-3.0/assets/[e-mail]'
 Binary files Ambiance/gtk-3.0/assets/[e-mail]	1970-01-01 00:00:00 +0000 and Ambiance/gtk-3.0/assets/[e-mail]	2018-03-27 04:55:20 +0000 differ
=== added file 'Ambiance/gtk-3.0/assets/windowbutton-close-hover.png'
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=== added file 'Ambiance/gtk-3.0/assets/windowbutton-close-hover.svg'
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=== added file 'Ambiance/gtk-3.0/assets/[e-mail]'
 Binary files Ambiance/gtk-3.0/assets/[e-mail]	1970-01-01 00:00:00 +0000 and Ambiance/gtk-3.0/assets/[e-mail]	2018-03-27 04:55:20 +0000 differ
=== added file 'Ambiance/gtk-3.0/assets/[e-mail]'
 Binary files Ambiance/gtk-3.0/assets/[e-mail]	1970-01-01 00:00:00 +0000 and Ambiance/gtk-3.0/assets/[e-mail]	2018-03-27 04:55:20 +0000 differ
=== added file 'Ambiance/gtk-3.0/assets/[e-mail]'
 Binary files Ambiance/gtk-3.0/assets/[e-mail]	1970-01-01 00:00:00 +0000 and Ambiance/gtk-3.0/assets/[e-mail]	2018-03-27 04:55:20 +0000 differ
=== added file 'Ambiance/gtk-3.0/assets/windowbutton-close.png'
 Binary files Ambiance/gtk-3.0/assets/windowbutton-close.png	1970-01-01 00:00:00 +0000 and Ambiance/gtk-3.0/assets/windowbutton-close.png	2018-03-27 04:55:20 +0000 differ
=== added file 'Ambiance/gtk-3.0/assets/windowbutton-close.svg'
--- Ambiance/gtk-3.0/assets/windowbutton-close.svg	1970-01-01 00:00:00 +0000
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=== added file 'Ambiance/gtk-3.0/assets/[e-mail]'
 Binary files Ambiance/gtk-3.0/assets/[e-mail]	1970-01-01 00:00:00 +0000 and Ambiance/gtk-3.0/assets/[e-mail]	2018-03-27 04:55:20 +0000 differ
=== added file 'Ambiance/gtk-3.0/assets/[e-mail]'
 Binary files Ambiance/gtk-3.0/assets/[e-mail]	1970-01-01 00:00:00 +0000 and Ambiance/gtk-3.0/assets/[e-mail]	2018-03-27 04:55:20 +0000 differ
=== added file 'Ambiance/gtk-3.0/assets/[e-mail]'
 Binary files Ambiance/gtk-3.0/assets/[e-mail]	1970-01-01 00:00:00 +0000 and Ambiance/gtk-3.0/assets/[e-mail]	2018-03-27 04:55:20 +0000 differ
=== added file 'Ambiance/gtk-3.0/assets/windowbutton-hover.png'
 Binary files Ambiance/gtk-3.0/assets/windowbutton-hover.png	1970-01-01 00:00:00 +0000 and Ambiance/gtk-3.0/assets/windowbutton-hover.png	2018-03-27 04:55:20 +0000 differ
=== added file 'Ambiance/gtk-3.0/assets/windowbutton-hover.svg'
--- Ambiance/gtk-3.0/assets/windowbutton-hover.svg	1970-01-01 00:00:00 +0000
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=== added file 'Ambiance/gtk-3.0/assets/[e-mail]'
 Binary files Ambiance/gtk-3.0/assets/[e-mail]	1970-01-01 00:00:00 +0000 and Ambiance/gtk-3.0/assets/[e-mail]	2018-03-27 04:55:20 +0000 differ
=== added file 'Ambiance/gtk-3.0/assets/[e-mail]'
 Binary files Ambiance/gtk-3.0/assets/[e-mail]	1970-01-01 00:00:00 +0000 and Ambiance/gtk-3.0/assets/[e-mail]	2018-03-27 04:55:20 +0000 differ
=== added file 'Ambiance/gtk-3.0/assets/[e-mail]'
 Binary files Ambiance/gtk-3.0/assets/[e-mail]	1970-01-01 00:00:00 +0000 and Ambiance/gtk-3.0/assets/[e-mail]	2018-03-27 04:55:20 +0000 differ
=== added file 'Ambiance/gtk-3.0/assets/windowbutton.png'
 Binary files Ambiance/gtk-3.0/assets/windowbutton.png	1970-01-01 00:00:00 +0000 and Ambiance/gtk-3.0/assets/windowbutton.png	2018-03-27 04:55:20 +0000 differ
=== added file 'Ambiance/gtk-3.0/assets/windowbutton.svg'
--- Ambiance/gtk-3.0/assets/windowbutton.svg	1970-01-01 00:00:00 +0000
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=== added file 'Ambiance/gtk-3.0/assets/[e-mail]'
 Binary files Ambiance/gtk-3.0/assets/[e-mail]	1970-01-01 00:00:00 +0000 and Ambiance/gtk-3.0/assets/[e-mail]	2018-03-27 04:55:20 +0000 differ
=== added file 'Ambiance/gtk-3.0/assets/[e-mail]'
 Binary files Ambiance/gtk-3.0/assets/[e-mail]	1970-01-01 00:00:00 +0000 and Ambiance/gtk-3.0/assets/[e-mail]	2018-03-27 04:55:20 +0000 differ
=== added file 'Ambiance/gtk-3.0/assets/[e-mail]'
 Binary files Ambiance/gtk-3.0/assets/[e-mail]	1970-01-01 00:00:00 +0000 and Ambiance/gtk-3.0/assets/[e-mail]	2018-03-27 04:55:20 +0000 differ
=== modified file 'Ambiance/gtk-3.20/gtk-widgets.css'
--- Ambiance/gtk-3.20/gtk-widgets.css	2018-03-22 17:37:50 +0000
+++ Ambiance/gtk-3.20/gtk-widgets.css	2018-03-27 04:55:20 +0000
@@ -2734,19 +2734,35 @@
 
 .titlebar button.titlebutton {
     background-clip: padding-box;
-    border: 1px solid #383734;
     color: #3d3c37;
     -gtk-icon-shadow: 0 1px rgba(255, 255, 255, 0.1);
-    border-radius: 9px;
-    padding: 0;
     box-shadow: none;
-    background-image: linear-gradient(to top, #5a5955, #75746d 50%, #8e8d88);
+    border: none;
+    padding-left: 0;
+    padding-right: 0;
+    margin: 0;
+
+    min-width: 20px;
+    min-height: 20px;
+    background-size: 20px 20px;
+    background-image: -gtk-scaled(url("assets/windowbutton.png"),
+                                  url("assets/[e-mail]"),
+                                  url("assets/[e-mail]"),
+                                  url("assets/[e-mail]"));
+    background-repeat: no-repeat;
+    background-position: center;
+}
+
+/* Add some vertical padding to make the buttons easier to click */
+.ssd .titlebar button.titlebutton {
+    padding-top: 3px;
+    padding-bottom: 3px;
 }
 
 /* keep buttons closer */
 .titlebar button.titlebutton {
-    margin-left: -2px;
-    margin-right: -2px;
+    margin-left: -3px;
+    margin-right: -3px;
 }
 
 .titlebar button.titlebutton:first-child {
@@ -2760,31 +2776,63 @@
 .titlebar button.titlebutton.close {
     color: #323112;
     -gtk-icon-shadow: 0 1px rgba(255, 255, 255, 0.25);
-    background-image: linear-gradient(to top, #de4c19, #e55e30 50%, #f58d6e);
+    background-image: -gtk-scaled(url("assets/windowbutton-close.png"),
+                                  url("assets/[e-mail]"),
+                                  url("assets/[e-mail]"),
+                                  url("assets/[e-mail]"));
 }
 
 .titlebar button.titlebutton.close:hover {
-    background-image: linear-gradient(to top, #e24f1b, #f17750 50%, #fba992);
+    background-image: -gtk-scaled(url("assets/windowbutton-close-hover.png"),
+                                  url("assets/[e-mail]"),
+                                  url("assets/[e-mail]"),
+                                  url("assets/[e-mail]"));
 }
 
 .titlebar button.titlebutton:hover,
 .titlebar button.titlebutton:backdrop:hover {
-    background-image: linear-gradient(to top, #969696, #bdbdbd 50%, #cacaca);
+    background-image: -gtk-scaled(url("assets/windowbutton-hover.png"),
+                                  url("assets/[e-mail]"),
+                                  url("assets/[e-mail]"),
+                                  url("assets/[e-mail]"));
 }
 
 .titlebar button.titlebutton:active {
     -gtk-icon-shadow: none;
-    background-image: linear-gradient(to top, #77766f, #74736c);
+    background-image: -gtk-scaled(url("assets/windowbutton-active.png"),
+                                  url("assets/[e-mail]"),
+                                  url("assets/[e-mail]"),
+                                  url("assets/[e-mail]"));
 }
 
 .titlebar button.titlebutton.close:active {
-    background-image: linear-gradient(to top, #ec6e44, #e76b41);
+    background-image: -gtk-scaled(url("assets/windowbutton-close-active.png"),
+                                  url("assets/[e-mail]"),
+                                  url("assets/[e-mail]"),
+                                  url("assets/[e-mail]"));
 }
 
 .titlebar button.titlebutton:backdrop {
     color: #3d3c37;
     -gtk-icon-shadow: none;
-    background-image: linear-gradient(to top, #605f59, #5b5a54);
+    background-image: -gtk-scaled(url("assets/windowbutton-backdrop.png"),
+                                  url("assets/[e-mail]"),
+                                  url("assets/[e-mail]"),
+                                  url("assets/[e-mail]"));
+}
+
+.titlebar button.titlebutton:hover:backdrop {
+    background-image: -gtk-scaled(url("assets/windowbutton-backdrop-hover.png"),
+                                  url("assets/[e-mail]"),
+                                  url("assets/[e-mail]"),
+                                  url("assets/[e-mail]"));
+}
+
+.titlebar button.titlebutton:active:backdrop {
+    background-image: -gtk-scaled(url("assets/windowbutton-backdrop-active.png"),
+                                  url("assets/[e-mail]"),
+                                  url("assets/[e-mail]"),
+                                  url("assets/[e-mail]"));
 }
 
 .titlebar button.titlebutton.appmenu,
 
=== modified file 'Radiance/gtk-3.20/gtk-widgets.css'
--- Radiance/gtk-3.20/gtk-widgets.css	2018-03-22 17:37:50 +0000
+++ Radiance/gtk-3.20/gtk-widgets.css	2018-03-27 04:55:20 +0000
@@ -2733,19 +2733,29 @@
 
 .titlebar button.titlebutton {
     background-clip: padding-box;
-    border: 1px solid #d0c7bf;
     color: #8b8379;
     -gtk-icon-shadow: 0 1px rgba(255, 255, 255, 0.5);
-    border-radius: 9px;
-    padding: 0;
     box-shadow: none;
-    background-image: linear-gradient(to top, #d5d2ce, #ece8e4 50%, #f7f4f3);
+    border: none;
+    padding-left: 0;
+    padding-right: 0;
+    margin: 0;
+
+    min-width: 20px;
+    min-height: 20px;
+    background-size: 20px 20px;
+    background-image: -gtk-scaled(url("assets/radiance-windowbutton.png"),
+                                  url("assets/[e-mail]"),
+                                  url("assets/[e-mail]"),
+                                  url("assets/[e-mail]"));
+    background-repeat: no-repeat;
+    background-position: center;
 }
 
 /* keep buttons closer */
 .titlebar button.titlebutton {
-    margin-left: -2px;
-    margin-right: -2px;
+    margin-left: -3px;
+    margin-right: -3px;
 }
 
 .titlebar button.titlebutton:first-child {
@@ -2759,31 +2769,63 @@
 .titlebar button.titlebutton.close {
     color: #7f4025;
     -gtk-icon-shadow: 0 1px rgba(255, 255, 255, 0.25);
-    background-image: linear-gradient(to top, #e77041, #f17d43 50%, #f9b39c);
+    background-image: -gtk-scaled(url("assets/radiance-windowbutton-close.png"),
+                                  url("assets/[e-mail]"),
+                                  url("assets/[e-mail]"),
+                                  url("assets/[e-mail]"));
 }
 
 .titlebar button.titlebutton.close:hover {
-    background-image: linear-gradient(to top, #e67144, #ed8b67 50%, #f9cbbd);
+    background-image: -gtk-scaled(url("assets/radiance-windowbutton-close-hover.png"),
+                                  url("assets/[e-mail]"),
+                                  url("assets/[e-mail]"),
+                                  url("assets/[e-mail]"));
 }
 
 .titlebar button.titlebutton:hover,
 .titlebar button.titlebutton:backdrop:hover {
-    background-image: linear-gradient(to top, #e2e1df, #f8f6f3 50%, #fcfbf9);
+    background-image: -gtk-scaled(url("assets/radiance-windowbutton-hover.png"),
+                                  url("assets/[e-mail]"),
+                                  url("assets/[e-mail]"),
+                                  url("assets/[e-mail]"));
 }
 
 .titlebar button.titlebutton:active {
     -gtk-icon-shadow: none;
-    background-image: linear-gradient(to top, #fcfbf8, #fbf9f6);
+    background-image: -gtk-scaled(url("assets/radiance-windowbutton-active.png"),
+                                  url("assets/[e-mail]"),
+                                  url("assets/[e-mail]"),
+                                  url("assets/[e-mail]"));
 }
 
 .titlebar button.titlebutton.close:active {
-    background-image: linear-gradient(to top, #ec6e44, #e76b41);
+    background-image: -gtk-scaled(url("assets/radiance-windowbutton-close-active.png"),
+                                  url("assets/[e-mail]"),
+                                  url("assets/[e-mail]"),
+                                  url("assets/[e-mail]"));
 }
 
 .titlebar button.titlebutton:backdrop {
     color: #8b8379;
     -gtk-icon-shadow: none;
-    background-image: linear-gradient(to top, #ece9e6, #e8e4e1);
+    background-image: -gtk-scaled(url("assets/radiance-windowbutton-backdrop.png"),
+                                  url("assets/[e-mail]"),
+                                  url("assets/[e-mail]"),
+                                  url("assets/[e-mail]"));
+}
+
+.titlebar button.titlebutton:hover:backdrop {
+    background-image: -gtk-scaled(url("assets/radiance-windowbutton-backdrop-hover.png"),
+                                  url("assets/[e-mail]"),
+                                  url("assets/[e-mail]"),
+                                  url("assets/[e-mail]"));
+}
+
+.titlebar button.titlebutton:active:backdrop {
+    background-image: -gtk-scaled(url("assets/radiance-windowbutton-backdrop-active.png"),
+                                  url("assets/[e-mail]"),
+                                  url("assets/[e-mail]"),
+                                  url("assets/[e-mail]"));
 }
 
 .titlebar button.titlebutton.appmenu,