dark-mode: Convert medium grey to translucent base color.
dark-mode: Convert medium grey to translucent base color.

This changes the message time from a medium grey to something that is
translucent base color instead.

eeshangarg/zulip,shubhamdhama/zulip,rishig/zulip,jackrzhang/zulip,hackerkid/zulip,andersk/zulip,rishig/zulip,rht/zulip,dhcrzf/zulip,punchagan/zulip,punchagan/zulip,hackerkid/zulip,hackerkid/zulip,shubhamdhama/zulip,shubhamdhama/zulip,tommyip/zulip,timabbott/zulip,rht/zulip,synicalsyntax/zulip,brainwane/zulip,synicalsyntax/zulip,hackerkid/zulip,jackrzhang/zulip,rht/zulip,rishig/zulip,rht/zulip,synicalsyntax/zulip,zulip/zulip,mahim97/zulip,hackerkid/zulip,brainwane/zulip,eeshangarg/zulip,zulip/zulip,jackrzhang/zulip,showell/zulip,brainwane/zulip,andersk/zulip,punchagan/zulip,punchagan/zulip,kou/zulip,brainwane/zulip,andersk/zulip,rht/zulip,dhcrzf/zulip,mahim97/zulip,timabbott/zulip,eeshangarg/zulip,andersk/zulip,kou/zulip,eeshangarg/zulip,punchagan/zulip,tommyip/zulip,mahim97/zulip,rht/zulip,hackerkid/zulip,shubhamdhama/zulip,jackrzhang/zulip,kou/zulip,dhcrzf/zulip,zulip/zulip,kou/zulip,rishig/zulip,rishig/zulip,shubhamdhama/zulip,showell/zulip,dhcrzf/zulip,mahim97/zulip,zulip/zulip,tommyip/zulip,zulip/zulip,synicalsyntax/zulip,synicalsyntax/zulip,shubhamdhama/zulip,showell/zulip,showell/zulip,dhcrzf/zulip,brainwane/zulip,rishig/zulip,kou/zulip,andersk/zulip,jackrzhang/zulip,eeshangarg/zulip,synicalsyntax/zulip,jackrzhang/zulip,timabbott/zulip,zulip/zulip,dhcrzf/zulip,tommyip/zulip,showell/zulip,timabbott/zulip,eeshangarg/zulip,kou/zulip,mahim97/zulip,punchagan/zulip,andersk/zulip,brainwane/zulip,shubhamdhama/zulip,tommyip/zulip,mahim97/zulip,tommyip/zulip,showell/zulip,dhcrzf/zulip,timabbott/zulip,jackrzhang/zulip,eeshangarg/zulip,rht/zulip,brainwane/zulip,rishig/zulip,showell/zulip,synicalsyntax/zulip,zulip/zulip,hackerkid/zulip,timabbott/zulip,andersk/zulip,kou/zulip,tommyip/zulip,punchagan/zulip,timabbott/zulip