ChromeOS Version 65.0.3322.0 (Official Build) canary (64-bit)
Firmware Version Google_Samus.6300.276.0 


# Open Settings > Manage accessibility features > Open Select to Speak Settings
# Hold down search and then click/drag to cover the entire settings page
Expected: text is read in appropriate place in the normal left to right tab order 
Actual: highlight moves from Highlighting heading to the toggle switch, then to the text "Highlight each word as it is is spoken". The words "dark background" and "light background" are read out of order and highlight is incorrect while they are read. 
# Turn on ChromeVox and use linear navigation, search + arrows, to move focus across these areas
Same incorrect ordering is shown. 

Note: it's not recommended to run STS and ChromeVox at the same time (or to even leave STS enabled while putting on ChromeVox.) However, once I disable STS, the options menu goes away, so I needed to keep STS on for this test.