Opacity not applied on startup

[Nebu Pookins]

I have opacity set in my `sakura.conf`:

```
[sakura]
colorset1_fore=rgb(255,255,255)
colorset1_back=rgba(0,0,0,0.87)
colorset1_curs=rgb(255,255,255)
colorset1_scheme=0
colorset1_key=F1
colorset2_fore=rgb(192,192,192)
colorset2_back=rgb(0,0,0)
colorset2_curs=rgb(255,255,255)
colorset2_scheme=1
colorset2_key=F2
colorset3_fore=rgb(192,192,192)
colorset3_back=rgb(0,0,0)
colorset3_curs=rgb(255,255,255)
colorset3_scheme=1
colorset3_key=F3
colorset4_fore=rgb(192,192,192)
colorset4_back=rgb(0,0,0)
colorset4_curs=rgb(255,255,255)
colorset4_scheme=1
colorset4_key=F4
colorset5_fore=rgb(192,192,192)
colorset5_back=rgb(0,0,0)
colorset5_curs=rgb(255,255,255)
colorset5_scheme=1
colorset5_key=F5
colorset6_fore=rgb(192,192,192)
colorset6_back=rgb(0,0,0)
colorset6_curs=rgb(255,255,255)
colorset6_scheme=1
colorset6_key=F6
last_colorset=1
bold_is_bright=false
scroll_lines=4096
font=Droid Sans Mono 10
show_always_first_tab=No
scrollbar=true
closebutton=true
tabs_on_bottom=false
less_questions=false
disable_numbered_tabswitch=false
use_fading=false
scrollable_tabs=true
urgent_bell=Yes
audible_bell=Yes
blinking_cursor=Yes
cursor_type=VTE_CURSOR_SHAPE_BLOCK
word_chars=-,./?%&#_~:
palette=1
add_tab_accelerator=5
del_tab_accelerator=5
switch_tab_accelerator=8
move_tab_accelerator=9
copy_accelerator=5
scrollbar_accelerator=5
open_url_accelerator=5
font_size_accelerator=4
set_tab_name_accelerator=5
search_accelerator=5
add_tab_key=T
del_tab_key=W
prev_tab_key=Left
next_tab_key=Right
copy_key=C
paste_key=V
scrollbar_key=S
set_tab_name_key=N
search_key=F
increase_font_size_key=plus
decrease_font_size_key=minus
fullscreen_key=F11
set_colorset_accelerator=5
icon_file=terminal-tango.svg
paste_button=2
menu_button=3
```

When I start Sakura, the background is fully opaque.

If I right click on Sakura and go into "Options -> Choose Colors", I see the "Opacity level (%)" is correctly set to 87.

If I slick "Select" and go back to Sakura, the background is still fully Opaque.

If I go back into the options and change the Opacity to some other value, e.g. 88, and click "Select". The background becomes semi-transparent.

If I exit Sakura and check my `sakura.conf` file, I see the new opacity is saved, e.g. `colorset1_back=rgba(0,0,0,0.88)`.

If I load Sakura again, the background is fully opaque again.

If I right click on Sakura and go into the color options again, I see that the option is still set to 88%.

So it looks like Sakura is correctly reading the config file and loading the opacity into memory, but it is not actually applying that opacity level until I change it to some other value in the option menu.

Tested on Archlinux:

```
pacman -Q sakura vte3 gtk3 xmonad xcompmgr
sakura 3.8.3-1
vte3 0.64.2-2
gtk3 1:3.24.30-2
xmonad 0.15-134
xcompmgr 1.1.8-2
```

This might be related, or a regression, of https://bugs.launchpad.net/sakura/+bug/969294

[David Gómez (dabisu)]

Yes, I'm aware of this bug. Anyway, thanks for the report. It's not related to the old bug you mention. I added some code in 3.8.1 that caused this problem. Another user sent me a patch to fix this, so I'll apply it ASAP and release a new version.

[David Gómez (dabisu)]

This bug is fixed in the latest release (3.8.4). Please add a new comment in this bug if still don't work as expected.