Please be more specific.
Where maintenance has "Last 20 issues"?

"Last 20 issues" widget column "Host". Host names highlighted orange before ZBXNEXT-1066.

Toms, you can see our manual http://www.zabbix.com/documentation/2.0/manual/maintenance last paragraph:

Hosts in maintenance are displayed accordingly in:

in Monitoring → Dashboard - the names of hosts in maintenance are displayed in orange (unless you have unset the display of hosts in maintenance with the dashboard filtering function)

OK, now I see the problem. I assumed there is talk about orange theme.

But then arises the question, what should we do in orange theme?

Toms, please check Monitoring->Triggers page. There is triggers should be orange too.

Fixed in dev. branch: svn://svn.zabbix.com/branches/dev/ZBX-5444

(1) please, describe in detail all the changes, done in this dev branch

<Toms> As there where problems with orange color in dark orange theme, we decided to introduce icon for hosts in maintenance.
For those hosts in maintenance we show icon with wrench alongside.
Now it is possible to click on the icon and see maintenance name, type and description.

<Vedmak> CLOSED

(2) trailing newline seems to be missing for default.css

<Toms> RESOLVED in r29797

<Vedmak> CLOSED

(3) there's some commented out code left (//$columnLeft->setAttribute('width', '10'); etc)

<Toms> RESOLVED in r29797

<Vedmak> CLOSED

(4)
Icons are not shown.

<Toms> RESOLVED in r29797

<Vedmak> CLOSED

(5)
In Monitoring->Triggers icon has popup opened on click, but in Dashboard it does not.

<Toms> RESOLVED in r29797

<Vedmak> CLOSED

(6)
In trunk in Monitoring ->Triggers maintenance description is shown in popup, in dev. branch it's not.

<Toms> RESOLVED in r29797

<Vedmak> CLOSED

(7)
I think css classes for icons should begin with "icon-".

<Toms> Please write coding guideline for naming icons.

<Toms> Decided to leave as it is.

<Vedmak> icon class should be renamed, but css can be left in default.css

<Toms> RESOLVED in r29827

<Vedmak> CLOSED

(8)
If user doesn't have permissions on maintenance, only icon should be shown without hint.

<Toms> RESOLVED in r29827

<Vedmak> CLOSED

Fixed in 2.0.3rc1 r29853 and 2.1.0 r29855

(9) now http://www.zabbix.com/documentation/2.0/manual/maintenance#display is wrong. it should describe how it was before and how it is now.
http://www.zabbix.com/documentation/2.0/manual/introduction/whatsnew203#maintenance_indicated_by_an_icon might help with that

<martins-v>RESOLVED. http://www.zabbix.com/documentation/2.0/manual/maintenance#display now has a description of how it is now and how it was before

<richlv> seems to ok to me - thanks, CLOSED

this resulted in regression : ZBX-5679