Viewer: bug or feature?

carmenchu · 03-25-2020, 07:03 PM

Hello!
I find that the e-viewer disregards

Code:

body {color: #000040; background: #f0f0f0; padding: 20px;}

in the css of an epub.
I am NOT in dark mode, 'override all book colors' set at 'never', color scheme is 'system'.
I have just 2 books with background-color set--both guides to python plug-ins for the Gimp, made from retrieved web pages, and I have tried to preserve in some measure the layout of the sources.
Am I doing something wrong, or the viewer will always override a body background-color?
(Note: Sigil shows the background color as in the css.)

theducks · 03-25-2020, 07:14 PM

In the Viewer, use the Preferences THERE

Set the override to Never

carmenchu · 03-25-2020, 07:24 PM

Is there that I have my preferences set:
'override all book colors' ='never', 'color scheme' = 'system' (I just want a background color when the book asks for it).

retiredbiker · 03-25-2020, 09:19 PM

Quote:

Originally Posted by carmenchu

Is there that I have my preferences set:
'override all book colors' ='never', 'color scheme' = 'system' (I just want a background color when the book asks for it).

I ran into this a while ago but got distracted and left it. Just did some tests now. I find that if I use a background-color rule in a <div>, for example a side note, it works in both the editor preview and the viewer. But if I put it in the <body> style, it shows in the editor preview but not the viewer.

(Same settings as yours, Calibre 4.12 on Ubuntu.)

So you could wrap each whole file with a suitable <div> to get the effect, but it would be better if it worked in the <body> style.

retiredbiker · 03-25-2020, 09:40 PM

More new features to learn. There is a tool on the viewer called "switch color scheme". Set it to "Easy" and the color called for in the <body> works. Mine was set to "White".

retiredbiker · 03-25-2020, 10:01 PM

I tried another book, and it turns out "Easy" must be for "easy on the eyes" or something. The book I tested had a body color nearly identical to what the "Easy" setting gives, so it fooled me

Problem remains.

carmenchu · 03-25-2020, 10:13 PM

Exactly so. Moreover,
* One would wish for an option to respect the color if/when present: 'override=never' *should* do thar, but apparently doesn't
* 'Easy' must an option in Linux?--in Windows there are others/other names, and so I dare say in Mac...

kovidgoyal · 03-26-2020, 12:04 AM

Body colors are always going to be changed to the user specified color. Not changing those makes the viewers color themes basically useless.

carmenchu · 03-26-2020, 08:37 AM

Understood: but what if one doesn't want a color teme inside the book-view frame?
(My case: quite happy to let each book--mostly customized by me--show its own layout.)

kovidgoyal · 03-26-2020, 10:12 AM

Wrap your books content in a div.

carmenchu · 03-26-2020, 11:11 AM

Quote:

Originally Posted by kovidgoyal

Wrap your books content in a div.

Of course... I wished to avoid some additional 25 <div class="...">...</div> tags.
Thanks, anyway.

03-25-2020, 07:03 PM	#1
carmenchu Groupie Posts: 191 Karma: 266070 Join Date: Dec 2010 Location: Spain Device: Win10,Win11,Ubuntu,PockbookLux44	Viewer: bug or feature? Hello! I find that the e-viewer disregards Code: body {color: #000040; background: #f0f0f0; padding: 20px;} in the css of an epub. I am NOT in dark mode, 'override all book colors' set at 'never', color scheme is 'system'. I have just 2 books with background-color set--both guides to python plug-ins for the Gimp, made from retrieved web pages, and I have tried to preserve in some measure the layout of the sources. Am I doing something wrong, or the viewer will always override a body background-color? (Note: Sigil shows the background color as in the css.)

03-25-2020, 07:14 PM	#2
theducks Well trained by Cats Posts: 31,046 Karma: 60358908 Join Date: Aug 2009 Location: The Central Coast of California Device: Kobo Libra2,Kobo Aura2v1, K4NT(Fixed: New Bat.), Galaxy Tab A	In the Viewer, use the Preferences THERE Set the override to Never Attached Thumbnails

03-25-2020, 09:40 PM	#5
retiredbiker Evangelist Posts: 450 Karma: 3886916 Join Date: May 2013 Location: Ontario, Canada Device: Kindle KB, Oasis, Pop_Os!, Kobo Forma	Found an Answer More new features to learn. There is a tool on the viewer called "switch color scheme". Set it to "Easy" and the color called for in the <body> works. Mine was set to "White". Attached Thumbnails

03-25-2020, 10:01 PM	#6
retiredbiker Evangelist Posts: 450 Karma: 3886916 Join Date: May 2013 Location: Ontario, Canada Device: Kindle KB, Oasis, Pop_Os!, Kobo Forma	OOPS. I tried another book, and it turns out "Easy" must be for "easy on the eyes" or something. The book I tested had a body color nearly identical to what the "Easy" setting gives, so it fooled me Problem remains.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Bug or feature?	Onion Ninja	Calibre	1	08-15-2017 08:58 AM
Possible viewer bug?	itimpi	Library Management	19	05-13-2014 12:29 PM
Another bug ... or a feature?	sergo	Conversion	4	11-29-2013 06:21 AM
Bug or Feature?	capidamonte	Calibre	5	07-27-2010 03:06 PM

03-25-2020, 07:24 PM	#3
carmenchu Groupie Posts: 191 Karma: 266070 Join Date: Dec 2010 Location: Spain Device: Win10,Win11,Ubuntu,PockbookLux44	Is there that I have my preferences set: 'override all book colors' ='never', 'color scheme' = 'system' (I just want a background color when the book asks for it).

03-25-2020, 10:13 PM	#7
carmenchu Groupie Posts: 191 Karma: 266070 Join Date: Dec 2010 Location: Spain Device: Win10,Win11,Ubuntu,PockbookLux44	Exactly so. Moreover, * One would wish for an option to respect the color if/when present: 'override=never' should do thar, but apparently doesn't * 'Easy' must an option in Linux?--in Windows there are others/other names, and so I dare say in Mac...

03-26-2020, 12:04 AM	#8
kovidgoyal creator of calibre Posts: 45,339 Karma: 27182818 Join Date: Oct 2006 Location: Mumbai, India Device: Various	Body colors are always going to be changed to the user specified color. Not changing those makes the viewers color themes basically useless.

03-26-2020, 08:37 AM	#9
carmenchu Groupie Posts: 191 Karma: 266070 Join Date: Dec 2010 Location: Spain Device: Win10,Win11,Ubuntu,PockbookLux44	Understood: but what if one doesn't want a color teme inside the book-view frame? (My case: quite happy to let each book--mostly customized by me--show its own layout.)

03-26-2020, 10:12 AM	#10
kovidgoyal creator of calibre Posts: 45,339 Karma: 27182818 Join Date: Oct 2006 Location: Mumbai, India Device: Various	Wrap your books content in a div.

Advert

Advert