Viewer: bug or feature?

carmenchu · 03-25-2020, 08:03 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, 08:14 PM

In the Viewer, use the Preferences THERE

Set the override to Never

carmenchu · 03-25-2020, 08:24 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, 10:19 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, 10:40 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, 11:01 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, 11:13 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, 01:04 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, 09:37 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, 11:12 AM

Wrap your books content in a div.

carmenchu · 03-26-2020, 12:11 PM

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, 08:03 PM	#1
carmenchu Addict Posts: 201 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, 08:14 PM	#2
theducks Well trained by Cats Posts: 31,267 Karma: 61916422 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, 10:40 PM	#5
retiredbiker Evangelist Posts: 454 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, 11:01 PM	#6
retiredbiker Evangelist Posts: 454 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.

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03-25-2020, 08:24 PM	#3
carmenchu Addict Posts: 201 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, 11:13 PM	#7
carmenchu Addict Posts: 201 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, 01:04 AM	#8
kovidgoyal creator of calibre Posts: 45,609 Karma: 28549044 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, 09:37 AM	#9
carmenchu Addict Posts: 201 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, 11:12 AM	#10
kovidgoyal creator of calibre Posts: 45,609 Karma: 28549044 Join Date: Oct 2006 Location: Mumbai, India Device: Various	Wrap your books content in a div.

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