Decrese font size

`Ctrl` + `Shift` + `<`

All hotkeys for Google Slides (Windows)

General Slides Shortcuts New slide	`Ctrl` + `N`
General Slides Shortcuts Copy	`Ctrl` + `C`
General Slides Shortcuts Paste	`Ctrl` + `V`
General Slides Shortcuts Undo	`Ctrl` + `Z`
General Slides Shortcuts Redo	`Ctrl` + `Y`
General Slides Shortcuts Insert or edit link	`Ctrl` + `K`
General Slides Shortcuts Delete	`Delete`
General Slides Shortcuts Find	`Ctrl` + `F`
General Slides Shortcuts Find and replace	`Ctrl` + `H`
General Slides Shortcuts Open	`Ctrl` + `O`
General Slides Shortcuts Save	`Ctrl` + `S`
General Slides Shortcuts Print	`Ctrl` + `P`
General Slides Shortcuts Select all	`Ctrl` + `A`
General Slides Shortcuts Select none	`Ctrl` + `Shift` + `A`
General Slides Shortcuts Open link	`Alt` + `Enter`
General Slides Shortcuts Find again	`Ctrl` + `G`
General Slides Shortcuts Find previous	`Ctrl` + `Shift` + `G`
General Slides Shortcuts Duplicate slide	`Ctrl` + `D`
General Slides Shortcuts Show common keyboard shortcut	`Ctrl` + `/`
General Slides Shortcuts Search menus	`Alt` + `/`
Working Point Navigation Action Move to 1st slide / Move to last slide	`Home` / `End`
Working Point Navigation Action Slide up / down	`Ctrl` + `Arrow Up` / `Arrow Down`
Working Point Navigation Action Slide to beginning/ end	`Ctrl` + `Shift` + `Arrow Up` / `Arrow Down`
Working Point Navigation Action Select previous / next slide	`Shift` + `Arrow Up` / `Arrow Down`
Working Point Navigation Action Select first slide / Select last slide	`Shift` + `Home` / `Shift` + `End`
Working Point Navigation Action Move to previous slide / Move to next slide	`Page Up` / `Page Down`
Working Point Navigation Action Zoom in	`Ctrl` + `Alt` + `=`
Working Point Navigation Action Zoom out	`Ctrl` + `Alt` + `-`
Working Point Navigation Action Move to canvas	`Ctrl` + `Alt` + `Shift` + `C`
Working Point Navigation Action Move to filmstrip	`Ctrl` + `Alt` + `Shift` + `F`
Working Point Navigation Action Open animation panel	`Ctrl` + `Alt` + `Shift` + `B`
Working Point Navigation Action Open speaker notes panel	`Ctrl` + `Alt` + `Shift` + `S`
Working Point Navigation Action Change to HTML view	`Ctrl` + `Alt` + `Shift` + `P`
Working Point Navigation Action Present slide	`Ctrl` + `F5`
Working Point Navigation Action Present slide from beginning	`Ctrl` + `Shift` + `F5`
Working Point Navigation Action Play the selected video	`Enter`
Text Editing Bold	`Ctrl` + `B`
Text Editing Underline	`Ctrl` + `U`
Text Editing Subscript	`Ctrl` + `,`
Text Editing Superscript	`Ctrl` + `.`
Text Editing Italic	`Ctrl` + `I`
Text Editing Increse indent	`Ctrl` + `]`
Text Editing Decrese indent	`Ctrl` + `[`
Text Editing Justify	`Ctrl` + `Shift` + `J`
Text Editing Bullet list	`Ctrl` + `Shift` + `8`
Text Editing Numbered list	`Ctrl` + `Shift` + `7`
Text Editing Center align	`Ctrl` + `Shift` + `E`
Text Editing Right	`Ctrl` + `Shift` + `R`
Text Editing Left	`Ctrl` + `Shift` + `L`
Text Editing Increse font size	`Ctrl` + `Shift` + `>`
Text Editing Decrese font size	`Ctrl` + `Shift` + `<`